Nemanja Radoja (born 6 February 1993) is a Serbian professional footballer who plays as a defensive midfielder.
Born in Novi Sad, Radoja grew up in neighbouring Veternik, and graduated from Vojvodina’s youth setup. Following footsteps of his older brother Stefan, he started training football. Radoja was promoted to the main squad in the summer of 2011, but was subsequently loaned to third-tier ČSK Čelarevo. He signed a new five-year professional deal with the Vojvodina on 8 March 2012, being subsequently loaned to fellow third division side Cement Beočin.
Radoja played his first match as a professional on 18 August 2012, coming on as a late substitute in a 1–0 away win against Spartak. He scored his first professional goal on 17 April 2013, netting his side’s only in a Serbian Cup semifinal 1–1 draw against OFK Beograd (2–1 on aggregate), thus taking Vojvodina to the finals.
Radoja played regularly for Voša in the 2012–13 campaign, appearing in 22 matches (16 starts, 1553 minutes of action) and helping his side to finish in the third position. He maintained his starting place in the following season, appearing in 25 matches, also being selected in the league’s best XI.
In August 2014. Radoja signed a five-year deal with La Liga side Celta de Vigo. He made his debut for the club on 24 August, playing the last three minutes in a 3–1 home win over Getafe.
Radoja made no appearances during the entire 2018–19 season, after he expressed his desire to play in the Premier League and refused a contract renewal from Celta.
On 21 August 2019, free agent Radoja agreed to a three-year contract with Levante, still in the Spanish top tier.