diff --git a/doc/_doxygen/favicon.png b/doc/_doxygen/favicon.png
new file mode 100644
index 00000000000..820bf4436fd
Binary files /dev/null and b/doc/_doxygen/favicon.png differ
diff --git a/doc/zephyr.doxyfile.in b/doc/zephyr.doxyfile.in
index cea0300cfb0..d0d56dc970b 100644
--- a/doc/zephyr.doxyfile.in
+++ b/doc/zephyr.doxyfile.in
@@ -67,7 +67,7 @@ PROJECT_LOGO           = @ZEPHYR_BASE@/doc/_doxygen/logo.svg
 # when the HTML document is shown. Doxygen will copy the logo to the output
 # directory.
 
-PROJECT_ICON           =
+PROJECT_ICON           = @ZEPHYR_BASE@/doc/_doxygen/favicon.png
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
 # into which the generated documentation will be written. If a relative path is