Mark Edward Marquess (March 24, 1947 â January 30, 2026) was an American college baseball coach. He served as the head coach of the Stanford Cardinal baseball team from 1977 to 2017.
Born and raised in Stockton, California, Marquess graduated from Stagg High School in Stockton in 1965, then attended Stanford University from 1965 to 1969, where he played on the Stanford Cardinal baseball team at first base from 1967 to 1969 and football team from 1966 to 1968 at quarterback, split end, defensive back, and punt returner.
At Stanford, Marquess was a member of Delta Tau Delta International Fraternity. His freshman year roommate at Stanford was Mitt Romney, who went on to become Governor of Massachusetts and the Republican nominee for President in 2012.
Selected by the Chicago White Sox in the 25th round of the 1969 Major League Baseball draft, Marquess played minor league baseball for the White Sox organization from 1969 to 1973, the last year as a player-coach for the Iowa Oaks, the White Sox's top affiliate.
From 1972 to 1976, Marquess was an assistant coach at Stanford under Ray Young before being promoted to head coach in 1977.
In his 41 years at Stanford, he compiled a record of 1,627âÂÂ878âÂÂ7 (.649). His teams made the postseason 23 times, and had a record of 109âÂÂ50 there. His teams had a 65âÂÂ25 record in the NCAA Regionals, a 10âÂÂ2 record. in the NCAA Super Regionals, and a 34âÂÂ23 record in the College World Series, with back-to-back national titles in 1987 and 1988. He is a member of the Stanford Athletic Hall of Fame. He announced his retirement in 2016.
Marquess died in Mountain View, California, on January 30, 2026, at the age of 78.
The following is a table of Marquess's yearly records as an NCAA head baseball coach.