Claire Van Ummersen (July 28, 1935 – September 29, 2021) was an American scholar and academic administrator, who served as President of Cleveland State University from 1993 to 2001. She was also national leader in career flexibility in higher education and women's advancement and leadership. Van Ummersen died in a car accident in Needham, Massachusetts, on September 29, 2021, at the age of 86.