Nicholas Colin Kay (born 3 August 1992) is an Australian professional basketball player for Shimane Susanoo Magic of the Japanese B.League.

[6] As a sophomore in 2012–13, Kay was named third-team all-RMAC after leading Metro State to the national title game and the RMAC regular season and tournament championships.

He averaged 15.9 points, 7.4 rebounds, 1.9 assists, 1.7 steals and 1.0 blocks per game, and was named NABC first team all-district and first-team all-RMAC.

He had a season-high 24 points against UC-Colorado Springs on 1 March 2014, helping Metro State finish the regular season as the third team in RMAC history to go undefeated.

He led the Roadrunners to their third consecutive RMAC regular season championship and a fourth-straight appearance in the NCAA tournament.

[6] In 2014, in between his junior and senior college seasons, Kay played for the Northside Wizards of the Queensland Basketball League (QBL).

[9] Kay returned to the Wizards for the 2015 QBL season and averaged 22.2 points, 9.8 rebounds, 2.7 assists and 1.2 steals in 13 games.

[9][10] In July 2015, Kay signed with the Townsville Crocodiles of the National Basketball League (NBL).

[9] With the Hawks in the 2017–18 NBL season, Kay averaged 11.7 points, 5.4 rebounds, 2.5 assists and 1.3 steals in 28 games.

[16] In the 2018–19 NBL season, he was named in the All-NBL First Team[17] and helped the Wildcats win the championship.

[9] On 4 May 2020, Kay opted out of the final year of his contract with the Wildcats to pursue international opportunities after the NBL implemented salary cuts due to the COVID-19 pandemic.

[9] Kay returned to Shimane for the 2023–24 B.League season and averaged 16.1 points, 8.9 rebounds, 3.4 assists and 1.4 steals in 60 games.

In 2019, he was awarded the Gaze Family Medal alongside Nathan Sobey for performances at the World Cup Qualifiers and the Commonwealth Games.

[40] In February 2022, Kay was named in a 17-man Australian Boomers squad ahead of the FIBA World Cup Qualifiers in Japan.