diff --git a/doc/mod/notification-telegram.md b/doc/mod/notification-telegram.md
index b85d09c..8043716 100644
--- a/doc/mod/notification-telegram.md
+++ b/doc/mod/notification-telegram.md
@@ -58,6 +58,9 @@ Sending notifications to a group is possible as well. Add your bot and the
 *GetIDs Bot* to a group, then use the group's id (which starts with a dash)
 for `TelegramChatId`. Then remove *GetIDs Bot* from group.
 
+Groups can enable the `Topics` feature. Use `TelegramThreadId` to send to a
+specific topic in a group.
+
 Usage and invocation
 --------------------
 
diff --git a/global-config.rsc b/global-config.rsc
index b364a25..2524ded 100644
--- a/global-config.rsc
+++ b/global-config.rsc
@@ -33,6 +33,8 @@
 :global TelegramChatId "";
 #:global TelegramTokenId "123456:ABCDEF-GHI";
 #:global TelegramChatId "12345678";
+# Use this to send notifications to a specific topic in group.
+:global TelegramThreadId "";
 # Using telegram-chat you have to define trusted chat ids (not group ids!)
 # or user names. Groups allow to chat with devices simultaneously.
 #:global TelegramChatIdsTrusted {
diff --git a/mod/notification-telegram.rsc b/mod/notification-telegram.rsc
index be4a915..d04893f 100644
--- a/mod/notification-telegram.rsc
+++ b/mod/notification-telegram.rsc
@@ -68,6 +68,8 @@
   :global TelegramChatIdOverride;
   :global TelegramMessageIDs;
   :global TelegramQueue;
+  :global TelegramThreadId;
+  :global TelegramThreadIdOverride;
   :global TelegramTokenId;
   :global TelegramTokenIdOverride;
 
@@ -108,6 +110,8 @@
 
   :local ChatId [ $EitherOr ($Notification->"chatid") \
     [ $EitherOr ($TelegramChatIdOverride->($Notification->"origin")) $TelegramChatId ] ];
+  :local ThreadId [ $EitherOr ($Notification->"threadid") \
+    [ $EitherOr ($TelegramThreadIdOverride->($Notification->"origin")) $TelegramThreadId ] ];
   :local TokenId [ $EitherOr ($TelegramTokenIdOverride->($Notification->"origin")) $TelegramTokenId ];
 
   :if ([ :len $TokenId ] = 0 || [ :len $ChatId ] = 0) do={
@@ -143,8 +147,8 @@
   }
 
   :local HTTPData ("chat_id=" . $ChatId . "&disable_notification=" . ($Notification->"silent") . \
-      "&reply_to_message_id=" . ($Notification->"replyto") . "&disable_web_page_preview=true" . \
-      "&parse_mode=MarkdownV2");
+      "&reply_to_message_id=" . ($Notification->"replyto") . "&message_thread_id=" . $ThreadId . \
+       "&disable_web_page_preview=true&parse_mode=MarkdownV2");
   :do {
     :if ([ $CertificateAvailable "Go Daddy Root Certificate Authority - G2" ] = false) do={
       $LogPrint warning $0 ("Downloading required certificate failed.");