Brown Thomas & Company Limited is a chain of four Irish department stores, located in Cork, Dublin, Galway and Limerick. Owned by Wittington Investments, Brown Thomas is an upmarket chain, akin to Canada's Holt Renfrew chain, Britain's Selfridges stores and De Bijenkorf in Amsterdam which are also controlled by the Weston family.

Thomas Brown may refer to:

• Thomas P. Brown, Jr. (1921–2011), American amateur tennis player
• Thomas Brown (cricketer, born 1854) (1854–1936), English cricketer
• Thomas Brown (cricketer, born 1848) (1848–1919), English cricketer
• Thomas Brown (cricketer, born 1863) (1863–1930), English cricketer
• Thomas Brown (sport shooter) (1885–1950), American Olympic sport shooter
• Thomas Brown (rugby) (born 1983), Welsh rugby union and rugby league player, not to be confused with Tom Brown (rugby union), born 1990
• Thomas Brown (defensive end) (born 1957), American football defensive end
• Thomas Brown (running back) (born 1986), American football running back