Brian Lacey (born 1974) is an Irish former Gaelic footballer who played as a right corner-back for the Tipperary and Kildare senior teams.
Born in Tipperary, Lacey first arrived on the inter-county scene at the age of seventeen when he linked up with the Tipperary minor hurling team, before later joining the under-21 football side. He joined the senior football panel during the 1995 championship. Lacey immediately became a regular member of the starting fifteen before later joining the Kildare senior team. Throughout his career he won two Leinster SFC medals and one Tommy Murphy Cup medal.
Lacey was a member of the Munster and Leinster inter-provincial teams on a number of occasions. At club level he is a two-time championship medallist with Round Towers. He began his career with Arravale Rovers.
Lacey retired from inter-county football following the conclusion of the 2006 championship.
He is a brother of former rugby union player-turned referee John Lacey.