A very versatile player, Alaba has played in a multitude of roles, including central midfield, central defence, right and left wing, but has since blossomed as a left-back.
Born in Vienna, Alaba began his career with SV Aspern, his local club in Aspern, in the 22nd district, Donaustadt, before joining the youth setup of FK Austria Wien at age 10. He rose through the ranks quickly, and in April 2008 he was named on the first-team substitutes' bench for a Bundesliga match. He also played five times for Austria Wien's reserve team, before leaving in summer 2008 to join German Bundesliga side Bayern Munich.
He started out in Bayern's youth system, playing for the under 17 and under 19 teams, before being promoted to the reserve team for the 2009–10 season. He made his debut in a 3. Liga match against Dynamo Dresden in August 2009 and scored his first professional goal for FC Bayern Munich II on 29 August 2009. He was named in Bayern Munich's squad for the 2009–10 UEFA Champions League, where he was assigned the shirt number 27. In January 2010, it was announced that Alaba would train with the first team for the rest of the 2009–10 season, along with reserve teammates Diego Contento and Mehmet Ekici.
The trio were named on the first-team substitutes' bench for the first time on 10 February 2010, for a DFB-Pokal game against SpVgg Greuther Fürth, and Alaba came on in the 59th minute, replacing Christian Lell. After one minute on the pitch, and with his second touch of the game, he set up Franck Ribéry to give Bayern a 3–2 lead, in a match they went on to win 6–2. He also became Bayern's youngest ever player in a competitive fixture, at 17 years, 7 months and 8 days old. At age 17 years, 8 months and 13 days, he made his UEFA Champions League debut against ACF Fiorentina on 9 March 2010.
In January 2011, Alaba joined TSG 1899 Hoffenheim on loan until the end of the 2010–11 season. Later that month he scored his first ever goal in the Bundesliga in a 2–2 draw with FC St. Pauli.
Alaba returned to Bayern at the start of the 2011–12 season, where he became a regular member of the first team squad. On 23 October 2011, Alaba scored his first league goal for Bayern in the 1–2 away loss against Hannover 96. During the second half of the 2011–12 Bundesliga season, he established himself as a starter for Bayern. On 25 April 2012, he played in the 2011–12 UEFA Champions League semi-final second leg against Real Madrid, and scored Bayern's first kick of the shootout as they won 3–1 on penalties. However, due to being booked in the semi-final, Alaba was unable to play in the 2012 UEFA Champions League Final through suspension.
On 2 April 2013, Alaba scored the seventh-fastest goal (25.02 seconds) in the Champions League history to set Bayern on their way to a 2–0 win over Juventus. On 25 May 2013, he played the full 90 minutes at left-back as Bayern beat Borussia Dortmund 2–1 in the 2013 UEFA Champions League Final. On 2 December 2013, Alaba signed a new contract with Bayern Munich, which expires in 2018.
During the 2013–14 season, he played in the German Super Cup against Borussia Dortmund, the UEFA Super Cup against Chelsea, and two matches in the FIFA Club World Cup; the first against Guangzhou Evergrande and the second against Raja Casablanca.
In January 2015, Alaba was voted as the left-back in the UEFA.com Team of the Year 2014 by users (354,067 votes) for the second time in a row, after 2013.
He made his 2015–16 season debut in the German Super Cup on 1 August, a penalty shootout defeat to VfL Wolfsburg. Three weeks later against his former club 1899 Hoffenheim, Alaba's misplaced pass resulted in Kevin Volland scoring in nine seconds, the quickest Bundesliga goal of all time. On 18 March 2016, Alaba extended his contract until 2021.
Alaba played for Austria at under-17, under-19 and under-21 level. In October 2009, he was called up to the senior Austria national team for a match against France. He made his debut in this game, making him the youngest player in the history of the Austrian national team. He scored his first goal for Austria on 16 October 2012 in a World Cup Qualifying game at home to Kazakhstan where Austria were 4–0 winners.
At the age of just 19, Alaba won the prestigious vote for Austrian Footballer of the Year in 2011. In the poll organised by APA (Austrian press agency) among the coaches of the ten Austrian Bundesliga clubs, Alaba finished top on 21 points, just ahead of Austria Wien's Dutch star Nacer Barazite (20 points) and VfB Stuttgart's Martin Harnik. In December 2012, he received the award for the second consecutive year. On 10 September 2013, Alaba scored the only goal of the game against Ireland in the 84 minute to give Austria a 1–0. He scored the final goal in Austria's 3–0 win in the final qualification match against Faroe Islands.
Alaba ended the 2014 FIFA World Cup qualification campaign as Austria's top scorer with six goals.
He scored a ninth-minute Panenka-style penalty kick on 8 September 2015 to open a 4–1 away win over Sweden at the Friends Arena in Solna. The result qualified Austria for UEFA Euro 2016, their first successful qualification campaign for the continental championship.
On 24 March 2017, he captained Austria for the first time in a World Cup 2018 Qualification game against Moldova in a 2–0 victory, deputizing in the absence of suspended captain Julian Baumgartlinger.Scores and results list Austria's goal tally first.
He assisted with the coaching of Bayern Munich's under-11 team in 2008–09.
Alaba was born in Vienna to Gina and George Alaba and has one sister, who is named Rose. His Visayan mother emigrated from the Philippines to work as a nurse. His Yoruba Nigerian father is a prince from Ogere who is also a rapper and works as a DJ. He is a Christian and a member of the Seventh-day Adventist Church.As of 26 August 2017.
1.^ Includes DFL-Supercup, UEFA Super Cup, and FIFA Club World Cup.
Bundesliga: 2009–10, 2012–13, 2013–14, 2014–15, 2015–16, 2016–17
DFB-Pokal: 2009–10, 2012–13, 2013–14, 2015–16
DFL-Supercup: 2010, 2012, 2016
UEFA Champions League: 2012–13
UEFA Super Cup: 2013
FIFA Club World Cup: 2013
Austrian Footballer of the Year: 2011, 2012, 2013, 2014, 2015, 2016
Austrian Sports Personality of the Year: 2013, 2014
UEFA Team of the Year: 2013, 2014, 2015
UEFA Champions League Team of the Group Stage: 2015
ESM Team of the Year: 2014
France Football World XI: 2015
Bundesliga Team of the Season: 2014–15, 2015–16
Alaba was chosen to be on the cover of FIFA 15 and FIFA 16 in Austria next to Lionel Messi.