Arthur Knapp Engle (born December 19, 1965) is an American former professional tennis player.

[1] A left-handed player from Boston, Engle attended Harvard University and competed in varsity tennis.

He earned ITA All-American honors for doubles in 1985 and was named the Region I Senior Player of the Year in 1988.

[2] Engle, now an attorney, featured briefly on the professional tour after Harvard and had a best singles ranking of 287.

He was a semi-finalist at the 1989 Bossonnens Challenger and made two qualifying draw appearances at Wimbledon.