Jeffrey Belloli (born February 10, 1970) is a former professional tennis player from the United States.

[1] He and his fraternal twin brother Chris are the only children of Cal State chemistry professor Robert and his wife Shirley.

[2] Prior to his career in professional tennis, Belloli played for San Diego State University in collegiate competition, where he earned NCAA All-American honors for doubles in 1991 and 1992.

[3] On the professional circuit, Belloli competed most successfully in doubles, with a career high ranking of 130 in the world.

His best ATP Tour performance was a semi-final appearance at the 1995 Swedish Open, partnering Mathias Huning.