The year 1931 saw a number of significant events in radio broadcasting history.

Events

• 30 April - In France the Poste Colonial (also known as "Radio Coloniale") begins broadcasting to the French colonies from a shortwave transmitter at Pontoise.
• 1 May - KGPL began broadcasting.
• 11 May - The Pittsburgh Police begin broadcasting with "radio patrol cars" and the region's first emergency band.
• 24 May Polskie Radio begins transmitting its national programme from a new longwave station at Raszyn, outside Warsaw. It is the most powerful transmitter in Europe at the time.

Debuts

• 27 January - Clara, Lu, and Em, the first daytime radio serial, debuts on the NBC Blue Network as a late-evening program. On 15 February 1932, the show moves to its morning time slot.
• 5 February - Eddie Cantor has his first radio appearance on Rudy Vallee's The Fleischmann's Yeast Hour.
• 2 September - Bing Crosby makes his solo debut on network radio and remains on air with at least one weekly show until the fall of 1962.
• 25 December - The Metropolitan Opera begins broadcasting its regular Saturday afternoon performances on the NBC Blue Network.

Births

• 18 August - Bernard "Buddy" Diliberto, (died 2005), sports commentator in New Orleans for over 50 years.
• 2 September - Michael Dante, American radio talk show host, actor, stage and screen director and former professional athlete.

Deaths

de:Rundfunkjahr 1931 sv:Radio ret 1931