Catherine Ann Warren (born February 12, 1984) is a beauty queen from Lake Forest, Illinois who has competed in the Miss USA pageant and the Miss International (USA) pageant.
Warren won the Miss Illinois USA 2006 title in a state pageant held in late 2005. This was the fourth time she competed for this title, having competed in 2003, placed 1st runner-up in 2004 and 2nd runner-up in 2005. On April 21, 2006 she competed for the title of Miss USA 2006 in Baltimore, Maryland and placed in the top 15. Warren was one of twenty six Miss USA Delegates who appeared on Deal or No Deal in 2006.
Warren graduated from Lake Forest High School in 2002 and attended the University of Kansas. She is currently a student at DePaul University. She intends to further her education by earning a Masters degree from a university in Chicago. Warren plans to utilize her education to fulfill her goal of owning and operating her own child care facility.
She is involved in promoting community services, volunteering and mentoring, and has created websites to help others better understand the need for involvement in this process.