David Michael Santos Daiber (born 10 January 2007) is a professional footballer who plays as a midfielder for club Bayern Munich. Born in Luxembourg, he is a Portugal youth international.
As a youth player, Santos Daiber played for the youth academy of TSV Milbertshofen in 2014. Following his stint there, he joined the youth academy of Bundesliga side Bayern Munich in 2016.
On 11 June 2025, Bayern Munich announced their 32-player final squad for the FIFA Club World Cup, which included Santos Daiber.
He was one of the players that were called up by Bayern Munich head coach Vincent Kompany, for the 2025 pre-season matches against French Ligue 1 club Lyon, English Premier League club Tottenham Hotspur, and Swiss Super League club Grasshopper, on 2, 7, and 12 August 2025, respectively. Santos Daiber was a starter for the match against Grasshopper, which Bayern Munich won 2âÂÂ1.
On 17 September 2025, he received his first call-up with the senior team for the 3âÂÂ1 home win UEFA Champions League match against English Premier League club Chelsea, as an unused substitute however. On 18 October 2025, Santos Daiber was called up for the 2âÂÂ1 home win Bundesliga match against Borussia Dortmund (Der Klassiker), although he did not play. He made his professional debut on 21 December of the same year, substituting Raphaël Guerreiro at the second half of a 4âÂÂ0 away win Bundesliga match against 1. FC Heidenheim.
Santos Daiber was called up as a starter for the 5âÂÂ0 win friendly match against Austrian Bundesliga club Red Bull Salzburg on 6 January 2026.
He made his debut with Bayern Munich II on 24 February 2026, starting for a 1âÂÂ0 home win Regionalliga Bayern match against SpVgg Unterhaching.
On 23 March 2026, Santos Daiber signed his first professional contract, extending until 2030.
Born in Luxembourg, he holds dual German and Portuguese citizenship, being eligible to represent either nation.
Santos Daiber has represented Portugal at under-17, under-18 and under-19 levels.