diff --git a/src/config.rs b/src/config.rs
index c69d4ab..cfb1ba2 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -183,6 +183,7 @@ pub struct TunableValues {
     pub typing_notice_send: bool,
     pub typing_notice_display: bool,
     pub users: UserOverrides,
+    pub default_room: Option<String>,
 }
 
 #[derive(Clone, Default, Deserialize)]
@@ -192,6 +193,7 @@ pub struct Tunables {
     pub typing_notice_send: Option<bool>,
     pub typing_notice_display: Option<bool>,
     pub users: Option<UserOverrides>,
+    pub default_room: Option<String>,
 }
 
 impl Tunables {
@@ -202,6 +204,7 @@ impl Tunables {
             typing_notice_send: self.typing_notice_send.or(other.typing_notice_send),
             typing_notice_display: self.typing_notice_display.or(other.typing_notice_display),
             users: merge_users(self.users, other.users),
+            default_room: self.default_room.or(other.default_room),
         }
     }
 
@@ -212,6 +215,7 @@ impl Tunables {
             typing_notice_send: self.typing_notice_send.unwrap_or(true),
             typing_notice_display: self.typing_notice_display.unwrap_or(true),
             users: self.users.unwrap_or_default(),
+            default_room: self.default_room,
         }
     }
 }
diff --git a/src/main.rs b/src/main.rs
index f823194..887c52c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -138,7 +138,14 @@ impl Application {
         let cmds = crate::commands::setup_commands();
 
         let mut locked = store.lock().await;
-        let win = IambWindow::open(IambId::Welcome, locked.deref_mut()).unwrap();
+
+        let win = settings
+            .tunables
+            .default_room
+            .and_then(|room| IambWindow::find(room, locked.deref_mut()).ok())
+            .or_else(|| IambWindow::open(IambId::Welcome, locked.deref_mut()).ok())
+            .unwrap();
+
         let cmd = CommandBarState::new(IambBufferId::Command, locked.deref_mut());
         let screen = ScreenState::new(win, cmd);
 
diff --git a/src/tests.rs b/src/tests.rs
index 0776ff2..73243dd 100644
--- a/src/tests.rs
+++ b/src/tests.rs
@@ -168,6 +168,7 @@ pub fn mock_dirs() -> DirectoryValues {
 
 pub fn mock_tunables() -> TunableValues {
     TunableValues {
+        default_room: None,
         read_receipt_send: true,
         read_receipt_display: true,
         typing_notice_send: true,