The year 1934 saw a number of significant happenings in radio broadcasting history.
- 1 January – In New Zealand, station 3YL Christchurch is opened.
- 14 January – The Lucerne Frequency Plan, reallocating long and short wave frequencies in Europe, comes into force.
- 26 March – In New Zealand, station 4YO Dunedin is opened.
- 28 June – Fireside chat: Review of the Achievements of the Seventy-third Congress.
- 1 July – The Federal Communications Commission is created, replacing the Federal Radio Commission in the United States.
- 30 September – Fireside chat: On Moving Forward to Greater Freedom and Greater Security.
- 7 October – In the United Kingdom, the new high-power longwave transmitter at Droitwich takes over from Daventry 5XX as the main station radiating the BBC National Programme.
- 10 December – WJBO is relocated from New Orleans to Baton Rouge and relaunched as WJBO 1150AM.
- 13 January – Al Pearce and His Gang debuts on NBC Blue.
- 10 March – Beatrice Fairfas debuts on NBC.
- 26 March – The Adventures of Frank Merriwell debuts on NBC.
- 16 April – Babe Ruth debuts on the Blue Network.
- April – Major Bowes Amateur Hour debuts on the New York City station WHN.
- 15 September – The Gibson Family debuts on NBC.
- 29 September – The Quality Network cooperative is reorganized and renamed the Mutual Broadcasting System. The stations participating in the co-op, all serving as part-owners, include WOR-New York (Bamberger Broadcasting Service/Macy's), WGN-Chicago (The Chicago Tribune), WLW-Cincinnati (Crosley Broadcasting Corporation) and WXYZ-Detroit (Kunsky-Trendle Broadcasting).
- 5 October - Hollywood Hotel debuts on CBS.
- 14 October – Lux Radio Theater debuts on NBC Blue for its first year, before moving to CBS for the remainder of its run.
- December - The first episode of Ovaltiney's Concert Party is broadcast, with Harry Hemsley and Gladys Young as presenters. 
- 2 January – Blackstone Plantation ends its run on network radio (NBC).
- 25 February – The American Revue ends its run on network radio (CBS).
- 3 March – Tarzan of the Apes ends its run on WOR.
- 16 November – Bring 'Em Back Alive ends its run on network radio (Blue Network).
- 17 December – The Atwater Kent Hour ends its run on network radio (CBS).
- 1 January – Alan Berg (died 1984), Denver-based liberal radio talk show host, previously an attorney.
- 30 January – Tammy Grimes (died 2016), American actress and singer, host of the final season of CBS Radio Mystery Theater.
- 25 April – George Bogle, minister and religious broadcaster in Detroit, Michigan.
- 10 May – Gary Owens, American radio host and voice actor (d. 2015).
- 18 December – Michael Freedland, British journalist, biographer and broadcaster in London (You Don't Have To Be Jewish) (d. 2018).
- An Encyclopedia of New Zealand 1966
- Cox, Jim (2008). This Day in Network Radio: A Daily Calendar of Births, Debuts, Cancellations and Other Events in Broadcasting History. McFarland & Company, Inc. ISBN 978-0-7864-3848-8.
- Dunning, John. (1998). On the Air: The Encyclopedia of Old-Time Radio. Oxford University Press. ISBN 978-0-19-507678-3.
- Cox, Jim (2002). Radio Crime Fighters: More Than 300 Programs from the Golden Age. McFarland. pp. 248–250. ISBN 9781476612270. Retrieved 9 September 2016.
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