Brian J. Claar (born July 29, 1959) is an American professional golfer.

Claar was born in Santa Monica, California. He play college golf at the University of Tampa where he was a two-time All-American. He was inducted into their Athletic Hall of Fame in 1989.

Claar turned professional in 1981. He played on the PGA Tour from 1986 to 1998. He was selected as the PGA Rookie of the Year in 1986. His best finish was a T-2 at the 1991 AT&T Pebble Beach National Pro-Am. He then played primarily on the Nationwide Tour from 1999 to 2002. His best finishes on this tour were a pair of T-2s in 2002, a playoff loss at the Hershey Open and T-2 at the Utah Classic.

Claar twice finished in the top-10 at a major. At the 1989 U.S. Open, he finished fifth, two shots behind Curtis Strange. At the 1992 PGA Championship, he finished tied for ninth, six shots behind Nick Price.

Claar has recently worked as Champions Tour official.