Lauren Bay (born August 9, 1981 in Trail, British Columbia) is a Canadian softball pitcher. She began playing softball at age 12, and is a student at Oklahoma State University. She was a part of the Canadian Softball team who finished 9th at the 2002 World Championships in Saskatoon, Saskatchewan and part of the Canadian Softball team who finished 5th at the 2004 Summer Olympics.

Her brother is a professional baseball player.