diff --git a/filcnaplo_kreta_api/lib/models/absence.dart b/filcnaplo_kreta_api/lib/models/absence.dart
index c0000e0..d694c86 100644
--- a/filcnaplo_kreta_api/lib/models/absence.dart
+++ b/filcnaplo_kreta_api/lib/models/absence.dart
@@ -1,5 +1,6 @@
 import "category.dart";
 import "subject.dart";
+import "teacher.dart";
 
 class Absence {
   Map? json;
@@ -7,7 +8,7 @@ class Absence {
   DateTime date;
   int delay;
   DateTime submitDate;
-  String teacher;
+  Teacher teacher;
   Justification state;
   Category? justification;
   Category? type;
@@ -41,8 +42,12 @@ class Absence {
     DateTime lessonEnd;
     int? lessonIndex;
     if (json["Ora"] != null) {
-      lessonStart = json["Ora"]["KezdoDatum"] != null ? DateTime.parse(json["Ora"]["KezdoDatum"]).toLocal() : DateTime(0);
-      lessonEnd = json["Ora"]["VegDatum"] != null ? DateTime.parse(json["Ora"]["VegDatum"]).toLocal() : DateTime(0);
+      lessonStart = json["Ora"]["KezdoDatum"] != null
+          ? DateTime.parse(json["Ora"]["KezdoDatum"]).toLocal()
+          : DateTime(0);
+      lessonEnd = json["Ora"]["VegDatum"] != null
+          ? DateTime.parse(json["Ora"]["VegDatum"]).toLocal()
+          : DateTime(0);
       lessonIndex = json["Ora"]["Oraszam"];
     } else {
       lessonStart = DateTime(0);
@@ -51,26 +56,33 @@ class Absence {
 
     return Absence(
       id: json["Uid"],
-      date: json["Datum"] != null ? DateTime.parse(json["Datum"]).toLocal() : DateTime(0),
+      date: json["Datum"] != null
+          ? DateTime.parse(json["Datum"]).toLocal()
+          : DateTime(0),
       delay: json["KesesPercben"] ?? 0,
-      submitDate: json["KeszitesDatuma"] != null ? DateTime.parse(json["KeszitesDatuma"]).toLocal() : DateTime(0),
-      teacher: (json["RogzitoTanarNeve"] ?? "").trim(),
+      submitDate: json["KeszitesDatuma"] != null
+          ? DateTime.parse(json["KeszitesDatuma"]).toLocal()
+          : DateTime(0),
+      teacher: Teacher.fromString((json["RogzitoTanarNeve"] ?? "").trim()),
       state: json["IgazolasAllapota"] == "Igazolt"
           ? Justification.excused
           : json["IgazolasAllapota"] == "Igazolando"
               ? Justification.pending
               : Justification.unexcused,
-      justification: json["IgazolasTipusa"] != null ? Category.fromJson(json["IgazolasTipusa"]) : null,
+      justification: json["IgazolasTipusa"] != null
+          ? Category.fromJson(json["IgazolasTipusa"])
+          : null,
       type: json["Tipus"] != null ? Category.fromJson(json["Tipus"]) : null,
       mode: json["Mod"] != null ? Category.fromJson(json["Mod"]) : null,
       subject: Subject.fromJson(json["Tantargy"] ?? {}),
       lessonStart: lessonStart,
       lessonEnd: lessonEnd,
       lessonIndex: lessonIndex,
-      group: json["OsztalyCsoport"] != null ? json["OsztalyCsoport"]["Uid"] : "",
+      group:
+          json["OsztalyCsoport"] != null ? json["OsztalyCsoport"]["Uid"] : "",
       json: json,
     );
   }
 }
 
-enum Justification { excused, unexcused, pending }
\ No newline at end of file
+enum Justification { excused, unexcused, pending }
diff --git a/filcnaplo_kreta_api/lib/providers/absence_provider.dart b/filcnaplo_kreta_api/lib/providers/absence_provider.dart
index c683447..6450953 100644
--- a/filcnaplo_kreta_api/lib/providers/absence_provider.dart
+++ b/filcnaplo_kreta_api/lib/providers/absence_provider.dart
@@ -27,7 +27,10 @@ class AbsenceProvider with ChangeNotifier {
 
     // Load absences from the database
     if (userId != null) {
-      var dbAbsences = await Provider.of<DatabaseProvider>(_context, listen: false).userQuery.getAbsences(userId: userId);
+      var dbAbsences =
+          await Provider.of<DatabaseProvider>(_context, listen: false)
+              .userQuery
+              .getAbsences(userId: userId);
       _absences = dbAbsences;
       await convertBySettings();
     }
@@ -36,12 +39,26 @@ class AbsenceProvider with ChangeNotifier {
   // for renamed subjects
   Future<void> convertBySettings() async {
     final _database = Provider.of<DatabaseProvider>(_context, listen: false);
-    Map<String, String> renamedSubjects = (await _database.query.getSettings(_database)).renamedSubjectsEnabled
-        ? await _database.userQuery.renamedSubjects(userId: Provider.of<UserProvider>(_context, listen: false).user!.id)
-        : {};
+    Map<String, String> renamedSubjects =
+        (await _database.query.getSettings(_database)).renamedSubjectsEnabled
+            ? await _database.userQuery.renamedSubjects(
+                userId:
+                    Provider.of<UserProvider>(_context, listen: false).user!.id)
+            : {};
+    Map<String, String> renamedTeachers =
+        (await _database.query.getSettings(_database)).renamedTeachersEnabled
+            ? await _database.userQuery.renamedTeachers(
+                userId:
+                    Provider.of<UserProvider>(_context, listen: false).user!.id)
+            : {};
 
     for (Absence absence in _absences) {
-      absence.subject.renamedTo = renamedSubjects.isNotEmpty ? renamedSubjects[absence.subject.id] : null;
+      absence.subject.renamedTo = renamedSubjects.isNotEmpty
+          ? renamedSubjects[absence.subject.id]
+          : null;
+      absence.teacher.renamedTo = renamedTeachers.isNotEmpty
+          ? renamedTeachers[absence.teacher.id]
+          : null;
     }
 
     notifyListeners();
@@ -53,9 +70,11 @@ class AbsenceProvider with ChangeNotifier {
     if (user == null) throw "Cannot fetch Absences for User null";
     String iss = user.instituteCode;
 
-    List? absencesJson = await Provider.of<KretaClient>(_context, listen: false).getAPI(KretaAPI.absences(iss));
+    List? absencesJson = await Provider.of<KretaClient>(_context, listen: false)
+        .getAPI(KretaAPI.absences(iss));
     if (absencesJson == null) throw "Cannot fetch Absences for User ${user.id}";
-    List<Absence> absences = absencesJson.map((e) => Absence.fromJson(e)).toList();
+    List<Absence> absences =
+        absencesJson.map((e) => Absence.fromJson(e)).toList();
 
     if (absences.isNotEmpty || _absences.isNotEmpty) await store(absences);
   }
@@ -66,7 +85,9 @@ class AbsenceProvider with ChangeNotifier {
     if (user == null) throw "Cannot store Absences for User null";
     String userId = user.id;
 
-    await Provider.of<DatabaseProvider>(_context, listen: false).userStore.storeAbsences(absences, userId: userId);
+    await Provider.of<DatabaseProvider>(_context, listen: false)
+        .userStore
+        .storeAbsences(absences, userId: userId);
     _absences = absences;
     await convertBySettings();
   }
diff --git a/filcnaplo_kreta_api/lib/providers/grade_provider.dart b/filcnaplo_kreta_api/lib/providers/grade_provider.dart
index b86c440..de33a64 100644
--- a/filcnaplo_kreta_api/lib/providers/grade_provider.dart
+++ b/filcnaplo_kreta_api/lib/providers/grade_provider.dart
@@ -83,10 +83,15 @@ class GradeProvider with ChangeNotifier {
     Map<String, String> renamedSubjects = _settings.renamedSubjectsEnabled
         ? await _database.userQuery.renamedSubjects(userId: _user.user!.id)
         : {};
+    Map<String, String> renamedTeachers = _settings.renamedTeachersEnabled
+        ? await _database.userQuery.renamedTeachers(userId: _user.user!.id)
+        : {};
 
     for (Grade grade in _grades) {
       grade.subject.renamedTo =
           renamedSubjects.isNotEmpty ? renamedSubjects[grade.subject.id] : null;
+      grade.teacher.renamedTo =
+          renamedTeachers.isNotEmpty ? renamedTeachers[grade.teacher.id] : null;
 
       grade.value.value =
           _settings.goodStudent ? 5 : grade.json!["SzamErtek"] ?? 0;
diff --git a/filcnaplo_kreta_api/lib/providers/homework_provider.dart b/filcnaplo_kreta_api/lib/providers/homework_provider.dart
index 34cde5a..8f5fa4d 100644
--- a/filcnaplo_kreta_api/lib/providers/homework_provider.dart
+++ b/filcnaplo_kreta_api/lib/providers/homework_provider.dart
@@ -48,11 +48,18 @@ class HomeworkProvider with ChangeNotifier {
         (await _database.query.getSettings(_database)).renamedSubjectsEnabled
             ? await _database.userQuery.renamedSubjects(userId: _user.id!)
             : {};
+    Map<String, String> renamedTeachers =
+        (await _database.query.getSettings(_database)).renamedTeachersEnabled
+            ? await _database.userQuery.renamedTeachers(userId: _user.id!)
+            : {};
 
     for (Homework homework in _homework) {
       homework.subject.renamedTo = renamedSubjects.isNotEmpty
           ? renamedSubjects[homework.subject.id]
           : null;
+      homework.teacher.renamedTo = renamedTeachers.isNotEmpty
+          ? renamedTeachers[homework.teacher.id]
+          : null;
     }
 
     notifyListeners();
diff --git a/filcnaplo_kreta_api/lib/providers/timetable_provider.dart b/filcnaplo_kreta_api/lib/providers/timetable_provider.dart
index fdd35d1..841a35f 100644
--- a/filcnaplo_kreta_api/lib/providers/timetable_provider.dart
+++ b/filcnaplo_kreta_api/lib/providers/timetable_provider.dart
@@ -40,11 +40,18 @@ class TimetableProvider with ChangeNotifier {
         (await _database.query.getSettings(_database)).renamedSubjectsEnabled
             ? await _database.userQuery.renamedSubjects(userId: _user.id!)
             : {};
+    Map<String, String> renamedTeachers =
+        (await _database.query.getSettings(_database)).renamedTeachersEnabled
+            ? await _database.userQuery.renamedTeachers(userId: _user.id!)
+            : {};
 
     for (Lesson lesson in _lessons.values.expand((e) => e)) {
       lesson.subject.renamedTo = renamedSubjects.isNotEmpty
           ? renamedSubjects[lesson.subject.id]
           : null;
+      lesson.teacher.renamedTo = renamedTeachers.isNotEmpty
+          ? renamedTeachers[lesson.teacher.id]
+          : null;
     }
 
     notifyListeners();
diff --git a/filcnaplo_mobile_ui/lib/common/widgets/absence/absence_view.dart b/filcnaplo_mobile_ui/lib/common/widgets/absence/absence_view.dart
index ef9c006..23ec169 100755
--- a/filcnaplo_mobile_ui/lib/common/widgets/absence/absence_view.dart
+++ b/filcnaplo_mobile_ui/lib/common/widgets/absence/absence_view.dart
@@ -17,19 +17,23 @@ import 'package:provider/provider.dart';
 import 'absence_view.i18n.dart';
 
 class AbsenceView extends StatelessWidget {
-  const AbsenceView(this.absence, {Key? key, this.outsideContext, this.viewable = false}) : super(key: key);
+  const AbsenceView(this.absence,
+      {Key? key, this.outsideContext, this.viewable = false})
+      : super(key: key);
 
   final Absence absence;
   final BuildContext? outsideContext;
   final bool viewable;
 
   static show(Absence absence, {required BuildContext context}) {
-    showBottomCard(context: context, child: AbsenceView(absence, outsideContext: context));
+    showBottomCard(
+        context: context, child: AbsenceView(absence, outsideContext: context));
   }
 
   @override
   Widget build(BuildContext context) {
-    Color color = AbsenceTile.justificationColor(absence.state, context: context);
+    Color color =
+        AbsenceTile.justificationColor(absence.state, context: context);
     SettingsProvider settingsProvider = Provider.of<SettingsProvider>(context);
 
     return Padding(
@@ -41,7 +45,8 @@ class AbsenceView extends StatelessWidget {
           ListTile(
             visualDensity: VisualDensity.compact,
             contentPadding: const EdgeInsets.only(left: 16.0, right: 12.0),
-            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8.0)),
+            shape: RoundedRectangleBorder(
+                borderRadius: BorderRadius.circular(8.0)),
             leading: Container(
               width: 44.0,
               height: 44.0,
@@ -60,10 +65,18 @@ class AbsenceView extends StatelessWidget {
               absence.subject.renamedTo ?? absence.subject.name.capital(),
               maxLines: 2,
               overflow: TextOverflow.ellipsis,
-              style: TextStyle(fontWeight: FontWeight.w700, fontStyle: absence.subject.isRenamed && settingsProvider.renamedSubjectsItalics ? FontStyle.italic : null),
+              style: TextStyle(
+                  fontWeight: FontWeight.w700,
+                  fontStyle: absence.subject.isRenamed &&
+                          settingsProvider.renamedSubjectsItalics
+                      ? FontStyle.italic
+                      : null),
             ),
             subtitle: Text(
-              absence.teacher,
+              (absence.teacher.isRenamed
+                      ? absence.teacher.renamedTo
+                      : absence.teacher.name) ??
+                  '',
               // DateFormat("MM. dd. (EEEEE)", I18n.of(context).locale.toString()).format(absence.date),
               style: const TextStyle(fontWeight: FontWeight.w500),
             ),
@@ -77,12 +90,15 @@ class AbsenceView extends StatelessWidget {
           if (absence.delay > 0)
             Detail(
               title: "delay".i18n,
-              description: absence.delay.toString() + " " + "minutes".i18n.plural(absence.delay),
+              description: absence.delay.toString() +
+                  " " +
+                  "minutes".i18n.plural(absence.delay),
             ),
           if (absence.lessonIndex != null)
             Detail(
               title: "Lesson".i18n,
-              description: "${absence.lessonIndex}. (${absence.lessonStart.format(context, timeOnly: true)}"
+              description:
+                  "${absence.lessonIndex}. (${absence.lessonStart.format(context, timeOnly: true)}"
                   " - "
                   "${absence.lessonEnd.format(context, timeOnly: true)})",
             ),
@@ -91,13 +107,19 @@ class AbsenceView extends StatelessWidget {
               title: "Excuse".i18n,
               description: absence.justification?.description ?? "",
             ),
-          if (absence.mode != null) Detail(title: "Mode".i18n, description: absence.mode?.description ?? ""),
-          Detail(title: "Submit date".i18n, description: absence.submitDate.format(context)),
+          if (absence.mode != null)
+            Detail(
+                title: "Mode".i18n,
+                description: absence.mode?.description ?? ""),
+          Detail(
+              title: "Submit date".i18n,
+              description: absence.submitDate.format(context)),
 
           // Show in timetable
           if (!viewable)
             Padding(
-              padding: const EdgeInsets.only(left: 16.0, right: 16.0, bottom: 6.0, top: 12.0),
+              padding: const EdgeInsets.only(
+                  left: 16.0, right: 16.0, bottom: 6.0, top: 12.0),
               child: PanelActionButton(
                 leading: const Icon(FeatherIcons.calendar),
                 title: Text(
@@ -109,12 +131,15 @@ class AbsenceView extends StatelessWidget {
                   Navigator.of(context).pop();
 
                   if (outsideContext != null) {
-                    ReverseSearch.getLessonByAbsence(absence, context).then((lesson) {
+                    ReverseSearch.getLessonByAbsence(absence, context)
+                        .then((lesson) {
                       if (lesson != null) {
                         TimetablePage.jump(outsideContext!, lesson: lesson);
                       } else {
-                        ScaffoldMessenger.of(context).showSnackBar(CustomSnackBar(
-                          content: Text("Cannot find lesson".i18n, style: const TextStyle(color: Colors.white)),
+                        ScaffoldMessenger.of(context)
+                            .showSnackBar(CustomSnackBar(
+                          content: Text("Cannot find lesson".i18n,
+                              style: const TextStyle(color: Colors.white)),
                           backgroundColor: AppColors.of(context).red,
                           context: context,
                         ));