Frank Leo Mason III (born April 3, 1994) is an American basketball player for the Sacramento Kings of the National Basketball Association (NBA). He played college basketball for the University of Kansas, where he was the starting point guard for the Jayhawks. For the 2016–17 season, he was named National Player of the Year by all of the major national player awards, making him consensus national player of the year. The awards are the John R. Wooden Award, CBS Sports National Player of the Year,  the USA Today, the Sporting News Player of the Year, Associated Press Player of the Year, Naismith College Player of the Year, Oscar Robertson Trophy, and NABC Player of the Year.  He was also a consensus All-American selection for his senior season at Kansas. 
Mason grew up in Petersburg, Virginia and went to Petersburg High School (Virginia). He scored 1,901 points in his four-year career at Petersburg, which is the second highest scoring total in school history behind NBA Hall of Famer Moses Malone. 
Mason had originally signed to attend Towson University in Towson, Maryland during his senior year, but he lost his eligibility after failing a government class.  Mason attended Massanutten Military Academy in Woodstock, Virginia to make up for the failing grade in government. After being discovered playing the Amateur Athletic Union circuit by Kansas Assistant Coach Kurtis Townsend, Mason was offered a scholarship by the University of Kansas. 
As a sophomore at Kansas, he was a second team All Big 12 selection.  He averaged 12.6 points, 3.9 rebounds, and 3.9 assists per game as a sophomore, an increase from the 5.5 points, 1.3 rebounds, and 2.1 assists per game he averaged as a freshman. 
During his junior season, Mason averaged 12.9 points and 4.6 assists and was named to the Big 12 All-Defensive Team. 
During his senior season, Mason took on more of a leadership role on the Kansas team, becoming the first player in Big 12 history to average 20 points and 5 assists a game during the regular season.  His regular season culminated in receiving multiple awards. He was unanimously selected as the Big 12 Player of the Year, averaging 20.5 points and 5.1 assists in the regular season.  He was also consensus first team All-American selection, the NCAA leading 29th 1st team selection in Kansas basketball history.  He was awarded multiple player of the year awards including AP Player of the Year,  Sporting News Player of the Year,  USA Today Player of the Year,  Oscar Robertson Award,  Naismith Award,  NABC Player of the Year 
Mason was drafted by the Sacramento Kings with the 34th pick in the 2017 NBA draft.  He played in the NBA Summer League for the Kings, where he scored 24 points in 24 minutes against the Los Angeles Lakers on July 10, 2017, adding 6 assists, 5 rebounds and 2 steals. 
Mason and the Kansas Jayhawks competed on behalf of the United States in the 2015 World University Games.  He scored 18 points in a double-overtime victory over Germany in the gold medal game and received the Finals MVP award.