Jameer Lamar Nelson Jr. (born August 7, 2001)[1] is an American professional basketball player for the Austin Spurs of the NBA G League.

He played college basketball for the George Washington Revolutionaries, Delaware Fightin' Blue Hens and TCU Horned Frogs.

Nelson attended Haverford School at Haverford, Pennsylvania where he led the team to an undefeated 30–0 season that culminated in a Class 5A state championship as a senior, all while averaging 15 points per game and earning second team All-State honors.

[2][3][4] Nelson played five seasons of college basketball at George Washington, Delaware and, in his last year, TCU, playing 136 games in total and having career averages of 13.5 points, 4.0 rebounds, 2.8 assists and 2.0 steals while shooting 43.5% from the field and 31.1% from beyond the arc.

[2][3][4][5] In his last season, Nelson played 34 minutes and averaged 11.2 points, 2.6 rebounds, 3.3 assists and 2.1 steals while shooting 43.4% from the field and 30.6% from three.