Caution! Caution: MediaWiki installations after MediaWiki 1.35.0 should be using $wgLogos as $wgLogo is no longer supported.[1]
Server URLs and file paths: $wgLogo
The URL of the site logo.
Introduced in version:before 1.1.0
Removed in version:still in use
Allowed values:(relative path or absolute URL)
Default value:"{$wgScriptPath }/resources/assets/change-your-logo.svg" (1.38+)

"{$wgScriptPath }/resources/assets/wiki.png" (1.24-1.37)
"{$wgStylePath }/common/images/wiki.png" (pre 1.1.0 – 1.23)

(Note: The default value of this variable depends on other variables, such as the values set in Setup.php , after LocalSettings.php is executed)


The site logo. Your logo should be the same size, i.e. 135 pixels.

The URL of the site logo (i.e. the image displayed in the upper-left corner of the page in most MediaWiki installations). Either a fully-qualified URL or a relative path from DOCUMENT_ROOT. If it's a relative path, it has to start with a slash (a file in DOCUMENT_ROOT is /file.png, not file.png).

The logo is expected to be 135 × 135 pixels. A bigger size can be used by modifying the site CSS (and smaller sizes are possible with no changes). Note that if you use a bigger image, MediaWiki will not resize this image! Instead, the image will be cut off so that only part of it (the upper left-hand corner to be precise) will be visible. If this corner is completely white, it might look like the image does not display although in fact it does.

  Caution: Do not simply overwrite the default logo installed with MediaWiki (/resources/assets/change-your-logo.svg); this file will automatically be overwritten when you upgrade and your changes will be lost.


Upload your logo file onto your server. Let's say it ends up as /images/4/47/mylogo.png. Then you can use it as your site logo by adding this line to LocalSettings.php:

$wgLogo = $wgScriptPath . '/images/4/47/mylogo.png';

Make sure that you add this line below the definition of $wgScriptPath! Otherwise, $wgScriptPath will still be undefined and the logo will not display.

Vary logo per language

With CSS, it is possible to use a different logo for each interface language:

.mw-wiki-logo:lang(ar) {
	background-image: url( /logos/ar.png ) !important;

.mw-wiki-logo:lang(de) {
	background-image: url( /logos/de.png ) !important;

See also