Alex Brown may refer to:

• Alex Brown (cornerback) (born 1996), American football player
• Alex Brown (defensive end) (born 1979), American football player
• Alex Brown (footballer, born 1914) (1914–2006), English football forward for Chesterfield, Darlington, and Mansfield
• Alex Brown (footballer, born 1992), English footballer
• Alex Brown (Liberian footballer) (born 1978)
• Alex Brown (rugby league) (born 1987), Jamaican rugby league player
• Alex Brown (rugby union, born 1905) (1905–1986), Scotland international rugby union player
• Alex Brown (rugby union, born 1979), former English rugby union player
• Alex Brown (rugby union, born 1989), English rugby union player for Exeter Chiefs

• Alex Brown (musician) (1966–2019), American guitarist
• Alex Brown, businessperson and landowner in the history of Walnut Grove, California

• Alex. Brown & Sons, the first investment bank in the United States

• Alex Browne, Australian rules footballer
• Alexander Brown (disambiguation)
• Sandy Brown (disambiguation)