diff --git a/docs/labwc-config.5.scd b/docs/labwc-config.5.scd
index 56097bca..c9e0c881 100644
--- a/docs/labwc-config.5.scd
+++ b/docs/labwc-config.5.scd
@@ -621,6 +621,7 @@ extending outward from the snapped edge.
 	- 'close': close
 	- 'shade': shade toggle
 	- 'desk': all-desktops toggle
+	- 'ontop': always-on-top toggle
 
 	A colon deliminator is used to separate buttons on the left and right,
 	whereas commas are used to separate items within a section. It is
@@ -900,6 +901,8 @@ input-devices by the Wayland protocol.
 	- Shade: A button that, by default, toggles window shading.
 	- AllDesktops: A button that, by default, toggles omnipresence of a
 	  window.
+	- OnTop: A button that, by default, toggles always-on-top state of a
+	  window.
 	- Close: A button that, by default, closses a window.
 	- Border: The window's border including Top...BRCorner below.
 	- Top: The top edge of the window's border.
diff --git a/docs/labwc-theme.5.scd b/docs/labwc-theme.5.scd
index 5f99cae7..b665761e 100644
--- a/docs/labwc-theme.5.scd
+++ b/docs/labwc-theme.5.scd
@@ -494,6 +494,8 @@ file within a particular theme. The following xbm buttons are supported:
 - max_toggled.xbm
 - desk.xbm
 - desk_toggled.xbm
+- ontop.xbm
+- ontop_toggled.xbm
 - shade.xbm
 - shade_toggled.xbm
 
@@ -506,9 +508,11 @@ over the button in question:
 - menu_hover.xbm
 - max_toggled_hover.xbm
 - desk_hover.xbm
-- desk_toggle_hover.xbm
+- desk_toggled_hover.xbm
+- ontop_hover.xbm
+- ontop_toggled_hover.xbm
 - shade_hover.xbm
-- shade_toggle_hover.xbm
+- shade_toggled_hover.xbm
 
 One advantage of xbm buttons over other formats is that they change color based
 on the theme. Other formats use the suffices "-active" and "-inactive" to align
@@ -558,7 +562,14 @@ following icons should be added:
 - desk_toggled-inactive.[png|svg]
 - desk_toggled_hover-active.[png|svg]
 - desk_toggled_hover-inactive.[png|svg]
-
+- ontop-active.[png|svg]
+- ontop_hover-active.[png|svg]
+- ontop_hover-inactive.[png|svg]
+- ontop-inactive.[png|svg]
+- ontop_toggled-active.[png|svg]
+- ontop_toggled-inactive.[png|svg]
+- ontop_toggled_hover-active.[png|svg]
+- ontop_toggled_hover-inactive.[png|svg]
 # DEFINITIONS
 
 The handle is the window edge decoration at the bottom of the window.
diff --git a/include/common/node-type.h b/include/common/node-type.h
index 52fff3b0..ddda2100 100644
--- a/include/common/node-type.h
+++ b/include/common/node-type.h
@@ -26,8 +26,9 @@ enum lab_node_type {
 	LAB_NODE_BUTTON_WINDOW_MENU,
 	LAB_NODE_BUTTON_SHADE,
 	LAB_NODE_BUTTON_OMNIPRESENT,
+	LAB_NODE_BUTTON_ONTOP,
 	LAB_NODE_BUTTON_FIRST = LAB_NODE_BUTTON_CLOSE,
-	LAB_NODE_BUTTON_LAST = LAB_NODE_BUTTON_OMNIPRESENT,
+	LAB_NODE_BUTTON_LAST = LAB_NODE_BUTTON_ONTOP,
 	LAB_NODE_BUTTON,
 
 	LAB_NODE_TITLEBAR,
diff --git a/include/config/default-bindings.h b/include/config/default-bindings.h
index a49f60f4..f2b49cb8 100644
--- a/include/config/default-bindings.h
+++ b/include/config/default-bindings.h
@@ -291,6 +291,11 @@ static struct mouse_combos {
 		.button = "Left",
 		.event = "Click",
 		.action = "ToggleOmnipresent",
+	}, {
+		.context = "OnTop",
+		.button = "Left",
+		.event = "Click",
+		.action = "ToggleAlwaysOnTop",
 	}, {
 		.context = "Maximize",
 		.button = "Right",
diff --git a/include/ssd-internal.h b/include/ssd-internal.h
index 600b9076..106fdf76 100644
--- a/include/ssd-internal.h
+++ b/include/ssd-internal.h
@@ -79,6 +79,7 @@ struct ssd {
 		 * such a small titlebar.
 		 */
 		bool was_squared;
+		bool was_ontop;
 
 		struct wlr_box geometry;
 		struct ssd_state_title {
diff --git a/src/common/node-type.c b/src/common/node-type.c
index 67958dd4..b3b66f8c 100644
--- a/src/common/node-type.c
+++ b/src/common/node-type.c
@@ -20,6 +20,8 @@ node_type_parse(const char *context)
 		return LAB_NODE_BUTTON_SHADE;
 	} else if (!strcasecmp(context, "AllDesktops")) {
 		return LAB_NODE_BUTTON_OMNIPRESENT;
+	} else if (!strcasecmp(context, "OnTop")) {
+		return LAB_NODE_BUTTON_ONTOP;
 	} else if (!strcasecmp(context, "Titlebar")) {
 		return LAB_NODE_TITLEBAR;
 	} else if (!strcasecmp(context, "Title")) {
diff --git a/src/config/rcxml.c b/src/config/rcxml.c
index 0514b6c7..714507c7 100644
--- a/src/config/rcxml.c
+++ b/src/config/rcxml.c
@@ -184,6 +184,8 @@ fill_section(const char *content, enum lab_node_type *buttons, int *count,
 			type = LAB_NODE_BUTTON_SHADE;
 		} else if (!strcmp(identifier, "desk")) {
 			type = LAB_NODE_BUTTON_OMNIPRESENT;
+		} else if (!strcmp(identifier, "ontop")) {
+			type = LAB_NODE_BUTTON_ONTOP;
 		} else {
 			wlr_log(WLR_ERROR, "invalid titleLayout identifier '%s'",
 				identifier);
diff --git a/src/ssd/ssd-titlebar.c b/src/ssd/ssd-titlebar.c
index d1a08810..8d6f5f23 100644
--- a/src/ssd/ssd-titlebar.c
+++ b/src/ssd/ssd-titlebar.c
@@ -299,6 +299,12 @@ ssd_titlebar_update(struct ssd *ssd)
 		ssd->state.was_omnipresent = view->visible_on_all_workspaces;
 	}
 
+	if (ssd->state.was_ontop != view->layer) {
+		set_alt_button_icon(ssd, LAB_NODE_BUTTON_ONTOP,
+			view->layer);
+		ssd->state.was_ontop = view->layer;
+	}
+
 	if (width == ssd->state.geometry.width) {
 		return;
 	}
diff --git a/src/ssd/ssd.c b/src/ssd/ssd.c
index e2ab6375..731bc3d0 100644
--- a/src/ssd/ssd.c
+++ b/src/ssd/ssd.c
@@ -227,7 +227,8 @@ ssd_update_geometry(struct ssd *ssd)
 	bool state_changed = ssd->state.was_maximized != maximized
 		|| ssd->state.was_shaded != view->shaded
 		|| ssd->state.was_squared != squared
-		|| ssd->state.was_omnipresent != view->visible_on_all_workspaces;
+		|| ssd->state.was_omnipresent != view->visible_on_all_workspaces
+		|| ssd->state.was_ontop != (view->layer == VIEW_LAYER_ALWAYS_ON_TOP);
 
 	/*
 	 * (Un)maximization updates titlebar visibility with
diff --git a/src/theme.c b/src/theme.c
index 93ac1c5e..50b80a54 100644
--- a/src/theme.c
+++ b/src/theme.c
@@ -315,6 +315,16 @@ load_buttons(struct theme *theme)
 		.fallback_button = (const char[]){ 0x00, 0x1e, 0x1a, 0x16, 0x1e, 0x00 },
 		.type = LAB_NODE_BUTTON_OMNIPRESENT,
 		.state_set = LAB_BS_TOGGLED,
+	}, {
+		.name = "ontop",
+		.fallback_button = (const char[]){ 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
+		.type = LAB_NODE_BUTTON_ONTOP,
+		.state_set = 0,
+	}, {
+		.name = "ontop_toggled",
+		.fallback_button = (const char[]){ 0x00, 0x0c, 0x1e, 0x33, 0x21, 0x00 },
+		.type = LAB_NODE_BUTTON_ONTOP,
+		.state_set = LAB_BS_TOGGLED,
 	}, {
 		.name = "close",
 		.fallback_button = (const char[]){ 0x33, 0x3f, 0x1e, 0x1e, 0x3f, 0x33 },
@@ -363,6 +373,17 @@ load_buttons(struct theme *theme)
 		.type = LAB_NODE_BUTTON_OMNIPRESENT,
 		.state_set = LAB_BS_TOGGLED | LAB_BS_HOVERED,
 		/* no fallback (non-hover variant is used instead) */
+	}, {
+		.name = "ontop_hover",
+		/* no fallback (non-hover variant is used instead) */
+		.type = LAB_NODE_BUTTON_ONTOP,
+		.state_set = LAB_BS_HOVERED,
+	}, {
+		.name = "ontop_toggled_hover",
+		.alt_name = "ontop_hover_toggled",
+		.type = LAB_NODE_BUTTON_ONTOP,
+		.state_set = LAB_BS_TOGGLED | LAB_BS_HOVERED,
+		/* no fallback (non-hover variant is used instead) */
 	}, {
 		.name = "close_hover",
 		.type = LAB_NODE_BUTTON_CLOSE,
@@ -836,6 +857,10 @@ entry(struct theme *theme, const char *key, const char *value)
 		parse_color(value, theme->window[SSD_ACTIVE]
 			.button_colors[LAB_NODE_BUTTON_OMNIPRESENT]);
 	}
+	if (match_glob(key, "window.active.button.ontop.unpressed.image.color")) {
+		parse_color(value, theme->window[SSD_ACTIVE]
+			.button_colors[LAB_NODE_BUTTON_ONTOP]);
+	}
 	if (match_glob(key, "window.active.button.close.unpressed.image.color")) {
 		parse_color(value, theme->window[SSD_ACTIVE]
 			.button_colors[LAB_NODE_BUTTON_CLOSE]);
@@ -862,6 +887,10 @@ entry(struct theme *theme, const char *key, const char *value)
 		parse_color(value, theme->window[SSD_INACTIVE]
 			.button_colors[LAB_NODE_BUTTON_OMNIPRESENT]);
 	}
+	if (match_glob(key, "window.inactive.button.ontop.unpressed.image.color")) {
+		parse_color(value, theme->window[SSD_INACTIVE]
+			.button_colors[LAB_NODE_BUTTON_ONTOP]);
+	}
 	if (match_glob(key, "window.inactive.button.close.unpressed.image.color")) {
 		parse_color(value, theme->window[SSD_INACTIVE]
 			.button_colors[LAB_NODE_BUTTON_CLOSE]);
diff --git a/src/view.c b/src/view.c
index bcbd366e..7a946664 100644
--- a/src/view.c
+++ b/src/view.c
@@ -1562,6 +1562,8 @@ view_toggle_always_on_top(struct view *view)
 	} else {
 		view_set_layer(view, VIEW_LAYER_ALWAYS_ON_TOP);
 	}
+	// Hack to update always-on-top ssd button state. May be wasteful, idk.
+	ssd_update_geometry(view->ssd);
 }
 
 void