diff --git a/editor/editor_themes.cpp b/editor/editor_themes.cpp
index 2ff53dd9f12c..4b99a932ad42 100644
--- a/editor/editor_themes.cpp
+++ b/editor/editor_themes.cpp
@@ -1910,7 +1910,10 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 
 	theme->set_icon("close", "GraphNode", theme->get_icon(SNAME("GuiCloseCustomizable"), SNAME("EditorIcons")));
 	theme->set_icon("resizer", "GraphNode", theme->get_icon(SNAME("GuiResizer"), SNAME("EditorIcons")));
-	theme->set_icon("port", "GraphNode", theme->get_icon(SNAME("GuiGraphNodePort"), SNAME("EditorIcons")));
+	Ref<ImageTexture> port_icon = theme->get_icon(SNAME("GuiGraphNodePort"), SNAME("EditorIcons"));
+	// The true size is 24x24 This is necessary for sharp port icons at high zoom levels in GraphEdit (up to ~200%).
+	port_icon->set_size_override(Size2(12, 12));
+	theme->set_icon("port", "GraphNode", port_icon);
 
 	theme->set_font("title_font", "GraphNode", theme->get_font(SNAME("main_bold_msdf"), SNAME("EditorFonts")));
 
diff --git a/editor/icons/GuiGraphNodePort.svg b/editor/icons/GuiGraphNodePort.svg
index d04dabcfc31a..04645d97b70b 100644
--- a/editor/icons/GuiGraphNodePort.svg
+++ b/editor/icons/GuiGraphNodePort.svg
@@ -1 +1 @@
-<svg height="10" viewBox="0 0 10 10" width="10" xmlns="http://www.w3.org/2000/svg"><circle cx="5" cy="5" fill="#fff" r="5"/></svg>
+<svg height="24" width="24" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><circle cx="12" cy="12" fill="#fff" r="10"/></svg>