Kerwynn Arthur Logan Williams (born June 9, 1991) is a former American football running back.

[1] He played wide receiver and running back as a junior before providing a serious triple threat element as a quarterback his senior season with the Vikings football team.

Following the departure of Robert Turbin, he became the starting running back for his senior season.

[6][7] Williams graduated from Utah State in December 2012, with a bachelor's degree in marketing from the Jon M. Huntsman School of Business.

[10] Williams was waived on September 1, 2013, to make room for tight end Jack Doyle.

[12] On September 14, 2013, Williams was promoted to the active roster after a season-ending injury to Vick Ballard.

[14] On October 9, 2013, Williams was signed by the San Diego Chargers to their practice squad.

[16] On December 7, 2014, Williams rushed for his first career 100-yard game in a win against the Kansas City Chiefs.

[17] On January 3, 2015, in the Wild Card Round against the Carolina Panthers, he had 23 rushing yards in the 27–16 defeat.

[28] On September 10, 2017, in the season opening 35–23 loss to the Detroit Lions, Williams came into the game in relief of injured running back David Johnson.

[29] He saw limited time until the last five weeks of the season largely due to the injury of veteran running back Adrian Peterson.