Loosemore is a surname. Notable people with the surname include:
Arnold Loosemore (1896–1924), English recipient of the Victoria Cross George Loosemore (1619–1682), English organist (brother of Henry and John) Henry Loosemore (d. 1670), English organist John Loosemore (1616–1681), English builder of pipe organs Sarah Loosemore (born 1971), Welsh tennis player