The year 1915 in radio involved some significant events.

• 29 September – A transcontinental radio telephone message is transmitted from the United States Navy radio station at Arlington, Virginia, to the naval radio station at Mare Island, California; then a few hours later relayed to Honolulu.^[1]

• 3 January – Frank Shozo Baba, Japanese-born radio broadcaster (died 2008)
• 6 May – Orson Welles, American actor known for the The War of the Worlds broadcast (died 1985)
• 25 January – Ewan MacColl, British folk singer-songwriter, actor and labour activist, co-creator of the radio ballad (died 1989)