Caroline Sarah J. Alexander (born 3 March 1968) is a cross-country mountain biker and road cyclist born in Barrow-in-Furness. She was a swimmer as a child and did not cycle until she was 20. She first rode a bike in competition in a triathlon: she came second in the swimming and was fastest on the bike. She entered her first mountain bike race, which she won. Within a year she was one of the top three mountain-bike racers in the UK. She left her job as a draughtswoman in Barrow shipyards and became a full-time cyclist.
She represented Britain at the 1996 Summer Olympics in Atlanta and the 2000 Summer Olympics in Sydney. She was a reserve for the British Cycling team at the 2001 UCI road world championships Alexander also represented Britain at the UCI Women's Road World Cup events in 2002. Alexander represented Scotland in the first mountain-bike event in the Commonwealth Games in 2002.
She was the first British female mountain biker to win a UCI World Cup stage in 1997.
Alexander retired from cycling in 2004. In 2009, she was inducted into the British Cycling Hall of Fame.