WLB

WLB may refer to:

Organisations

 * Welsh Language Board, a former UK statutory body
 * Wiener Lokalbahnen, an Austrian railway company
 * Württembergische Landesbibliothek, the Württemberg State Library, in Stuttgart, Germany

Other uses

 * Radio K, Minnesota, US, by former callsign
 * USCG seagoing buoy tender, by hull classification symbol
 * Wiffle League Ball, a wiffle ball league
 * Work–life balance, a concept referring to proper prioritizing between career and personal life development
 * Weakside linebacker, a defensive position in American and Canadian football
 * What Lies Beneath (Tarja album), an album from Finnish singer Tarja