Conor John Gallagher (born 6 February 2000) is an English professional footballer who plays as a midfielder for La Liga club Atlético Madrid and the England national team.

[11] In August 2019, Gallagher signed a new three-year contract with Chelsea and moved on loan to Championship club Charlton Athletic.

[13] On 15 January 2020, the day after leaving Charlton, Gallagher joined Championship club Swansea City on loan for the rest of the 2019–20 season.

[14][15] During his time in South Wales, Gallagher was part of the Swansea team that reached the semi-finals of the Championship play-off, where they lost 3–2 to Brentford on aggregate.

[17] On 17 September 2020, Gallagher signed a new five-year contract with Chelsea, and joined fellow Premier League club West Bromwich Albion on loan for the 2020–21 season.

[21] Gallagher was named Albion's Young Player of the Season as the club finished 19th in the Premier League and were relegated to the Championship.

[25] In November, Gallagher was subjected to homophobic chants from a group of Leeds United fans; the club issued a statement which condemned this.

[28] During his season with Palace, Gallagher was described by The Daily Telegraph as "one of the Premier League's most vibrant talents" and "a key player for Patrick Vieira", who was "thriving in his box-to-box role".

[35] In the following match, a 2–1 win over Leicester City at Stamford Bridge on 27 August, he received his first career red card for two bookable offences.

[36] On 14 September, he made his UEFA Champions League debut as an 81st minute substitute for Mateo Kovačić in a 1–1 draw with RB Salzburg in the group stage.

[63] Gallagher made his official debut for Atlético as a 58th-minute substitute for Rodrigo Riquelme in the team's 2024–25 La Liga season opener against Girona at the Estadio Metropolitano on 25 August.

[66] Gallagher's family heritage meant he was eligible to play for England, Scotland or the Republic of Ireland until he made a competitive appearance for any at senior level.

[72] In November 2022, he was named in England's squad for the 2022 FIFA World Cup in Qatar[73] where he was an unused substitute in all five of the team's matches.

[74] In the team's opening match against Serbia, he made his tournament debut as a 69th minute substitute for Trent Alexander-Arnold, as England won 1–0 to go top of Group C.[75] After replacing Alexander-Arnold in the 54th minute of the second match against Denmark,[76] Gallagher made his first start of the tournament in the 0–0 draw with Slovenia, playing the first half before being substituted for Kobbie Mainoo at half time.

[76] He went on to make substitute appearances against Slovakia in the round of 16 and the Netherlands in the semi-final, as England finished as runner-up for the second consecutive UEFA European Championship.