Leander Dendoncker (born 15 April 1995) is a Belgian professional footballer who plays as a defensive midfielder or centre-back for Croatian Football League club Hajduk Split.
Dendoncker joined Anderlecht in 2009 and made his professional debut in July 2013, going on to play 171 matches and score eleven goals for the club as well as winning two Belgian Super Cups and a Belgian Pro League title. In 2018, he signed for Wolverhampton Wanderers on loan, before transferring permanently for €15 million. After making 159 appearances and scoring twelve goals for the club, Dendoncker moved to fellow Premier League side Aston Villa in September 2022 for an undisclosed fee. He was loaned to Serie A club Napoli and to Anderlecht in 2024. He then joined Spanish club Real Oviedo permanently in August 2025.
Having represented Belgium at youth and senior level, Dendoncker made his senior international debut for Belgium in June 2015. He was part of their squad that finished third at the 2018 FIFA World Cup, also featuring at UEFA Euro 2020 and the 2022 World Cup.
Dendoncker transferred from K.S.V. Roeselare to R.S.C. Anderlecht in 2009, choosing that club ahead of Standard Liège, Club Brugge and K.R.C. Genk. After performances for the youth team in the NextGen Series and a training camp in Turkey, he was incorporated into the first team in January 2013. He said at the time that he modelled his game on that of the Spanish midfielder Sergio Busquets.
He made his professional debut on 21 July in the 2013 Belgian Super Cup, replacing Dennis Praet for the final nine minutes of the 1–0 win over Genk at the Constant Vanden Stock Stadium. On 26 September, he extended his contract until 2016.
However, it was not until 1 August 2014 that he debuted in the Belgian Pro League, on the first day of the season away to KV Oostende. After scoring his first professional goal on 18 January 2015 in a 3–0 win at Lierse S.K., Dendoncker was praised by former Anderlecht player Paul Van Himst, who said that there was no better player at his position in the club. He played six matches in the 2014–15 Belgian Cup, which his team lost 2–1 in the final to Brugge.
Anderlecht won the 2016–17 Belgian First Division A. Dendoncker scored five goals along the way, including two on 18 December in a 4–0 home win over K.A.S. Eupen. He also played all 16 games in their European campaign that season, which ended with elimination by eventual winners Manchester United in the quarter-finals of the UEFA Europa League. In the first leg of that tie on 13 April 2017, he scored a late equaliser in a 1–1 draw.
On 9 August 2018, Dendoncker moved to newly promoted English Premier League club Wolverhampton Wanderers on an initial season-long loan with an obligation on Wolves to make the player a permanent Wolves signing in summer 2019. He made his debut on 28 August in the second round of the EFL Cup away to Sheffield Wednesday (2–0 victory), with coach Nuno Espírito Santo making nine changes from the previous game. In late September, The Football Association rejected the obligatory purchase clause in Dendoncker's Wolves contract and made his deal permanent for €15 million.
He finally made a league appearance on 5 December in a 2–1 win against Chelsea, playing the final nine minutes in place of goalscorer Raúl Jiménez, and scored his first Premier League goal on his sixth appearance in the competition, in a 1–3 win at Everton on 2 February 2019.
Dendoncker committed a foul in the Wolves penalty area with just 180 seconds remaining of their April 2019 FA Cup semi-final with Watford while leading 2–1, thereby conceded the penalty that enabled the opponents to draw the game and then win in extra time. On 4 May he scored the only goal of a home win over Fulham, which enabled Wolves to make the Europa League as a result of Watford losing the cup final.
Dendoncker became a permanent Wolves signing on 1 July 2019, his original loan agreement having included an obligation on the club to sign him permanently at the end of the original season-long loan period. Following the introduction of Video Assistant Referees (VAR) by the Premier League for the 2019–20 season, he was the first Wolves player to have a 'goal' ruled out using VAR in a league match during Wolves' opening fixture away to Leicester City on 11 August.
On 14 December 2020, it was announced by Wolverhampton Wanderers that Dendoncker had extended his contract with the club until 2023, with an option of a further twelve months available to the club. He made his 100th competitive appearance for the club in an FA Cup 4th Round tie away to non-league Chorley the following 22 January, a game Wolves won 1–0. He scored his first goal of the 2020–21 season at home to West Ham United in a 3–2 loss on 5 April 2021. He scored his first goal in the 2021–22 Premier League season in 2–0 win away to Tottenham Hotspur on 13 February 2022.
On 1 September 2022, 27-year-old Dendoncker moved to fellow West Midlands-based Premier League club Aston Villa for a fee of around £13 million. He made his debut 15 days later, as a 67th-minute substitute for Jacob Ramsey in a 1–0 home victory over Southampton. He was mainly used as a substitute in his first season, and missed out on games altogether, and manager Unai Emery said that it was because of "a problem at home"; he was absent from all of March 2023 with a hand injury.
Dendoncker scored his first goal for Aston Villa on 26 December 2023, his team's second in a 3–2 defeat at Old Trafford against Manchester United.
On 26 January 2024, Dendoncker was sent to Serie A club Napoli on loan until the end of the season, with the option to buy for around £8 million at the end of the loan. He made his Napoli debut two days later in a 0–0 draw at Lazio. On 30 June 2024, Napoli confirmed that they would not be taking up the option to sign Dendoncker permanently and he would be returning to Aston Villa.
On 31 August 2024, Dendoncker returned to Anderlecht on loan until the end of the season. Both clubs agreed on a purchase option, but the amount is undisclosed. At the end of his loan, the Belgian club decided not to act on the purchase option and Dendoncker returned to Aston Villa.
On 19 August 2025, Dendoncker signed for newly promoted La Liga club Real Oviedo for an undisclosed fee. Despite the official statement on the transfer stating there was an undisclosed fee, media reported that it was actually a free transfer with Aston Villa keen to rid themselves of Dendoncker's wages.
At the age of 20 on 22 May 2015, Dendoncker received his first call-up to the Belgium national football team by coach Marc Wilmots, along with his Anderlecht teammate Youri Tielemans. He made his debut on 7 June in an away friendly match against France, replacing Jason Denayer for the final five minutes of a 4–3 victory.