Since making her debut for the England women's national football team in 1997, Brown won over 80 caps. She understudied Pauline Cope in her first years with the national team, then served as England's first choice goalkeeper at the 2007 FIFA Women's World Cup and UEFA Women's Euro 2009. Due to injuries, Brown was displaced in the team by Karen Bardsley for the 2011 FIFA Women's World Cup. She was also selected in the Great Britain squad for the 2012 London Olympics. Brown was the goalkeeper on Channel Five's "Superstars" and is employed by Everton FC's Community Project. Outside of football, she is known as Rachel Brown-Finnis, due to her marriage to professional golfer Ian Finnis.