1. Oumar Niasse won the 2011 Senegal Premier League with Ouakam and scored in Lokomotiv Moscow's win in the 2015 Russian Cup Final.

1. Oumar Niasse won the 2011 Senegal Premier League with Ouakam and scored in Lokomotiv Moscow's win in the 2015 Russian Cup Final.
Oumar Niasse made his full international debut for Senegal in 2013.
Oumar Niasse started a trial with Norwegian club Brann in February 2012, and after impressing signed for the club on a six-month loan.
Oumar Niasse joined the summer camp of Turkish Super Lig club Akhisar Belediyespor and signed permanently with them in August 2013.
Oumar Niasse made his debut for the club against AFC Bournemouth on 20 February 2016, entering as an 80th-minute substitute for striker Romelu Lukaku.
In October 2016, Oumar Niasse was demoted to the under-23 squad and had his personal locker revoked.
On 18 January 2019, Oumar Niasse joined fellow Premier League team Cardiff City on loan for the remainder of the season.
On 26 March 2021, after a period of training with the club, Oumar Niasse signed for EFL Championship side Huddersfield Town.
Oumar Niasse never made an appearance for the club and left when his contract expired in June 2021.
On 17 February 2022, Oumar Niasse signed for EFL League One side Burton Albion following a short period of training with the club.
On 10 March 2023, Oumar Niasse signed for relegation threatened League One club Morecambe on a short-term contract until the end of the season.
On 23 November 2023, Oumar Niasse joined seventh-tier Northern Premier League Premier Division club Macclesfield on a short-term contract.
Oumar Niasse was first selected for the Senegal national team in January 2013 as part of an all domestic-based squad.
Oumar Niasse last played for his country in 2018, and has appeared nine times in total, scoring three goals.