Marshall Lance Nelson[1] (born 31 January 1994) is an Australian-Belgian professional basketball player for the Kalamunda Eastern Suns of the NBL1 West.

He has had two stints in the National Basketball League (NBL), first with the Illawarra Hawks as a development player between 2017 and 2019 and then with the Cairns Taipans as an injury replacement during the 2021–22 season.

Nelson was born in the U.S. state of Minnesota and moved to Perth, Western Australia, when he was four years old.

[2] He attended Lesmurdie Senior High School[3] and played in the Western Australian Basketball League (WABL) for the Kalamunda Eastern Suns as a junior.

[9] For the 2015–16 U.S. college season, Nelson transferred to Wayland Baptist University of the National Association of Intercollegiate Athletics (NAIA).

[12] He helped the Redbacks reach the SBL Grand Final,[4] where they defeated the Joondalup Wolves 103–70 to win the championship.

[15] Nelson continued on with the Hawks as a development player, this time on a contract, in the 2018–19 NBL season.

[20] On 29 November 2019, Nelson signed with Jämtland Basket of the Swedish Basketball League for the rest of the 2019–20 season.

[32] On 30 December 2021, Nelson signed with the Cairns Taipans as an injury replacement for Scott Machado.

[33] He made his debut for the Taipans the next day, recording two points and two rebounds in five minutes off the bench in an 84–78 loss to the Perth Wildcats.

[48] He helped the Flames win the minor premiership[49] but they went on to lose to the Joondalup Wolves in the preliminary final.

[53] A week later, he played for the NBL1 West Select Team against the Perth Wildcats in two NBL pre-season games.

[54] After initially re-signing with the Flames,[55] Nelson joined the Willetton Tigers in April 2024 for the 2024 NBL1 West season.

[60] Following the season, he once again played for the NBL1 West Select Team against the Perth Wildcats in two NBL pre-season games.

[61] In July 2024, Nelson signed with PSA Sant'Antimo of the Italian Serie B Basket for the 2024–25 season.