Alexander Hartmann Bah (born 9 December 1997) is a Danish professional footballer who plays as a right-back for Primeira Liga club Benfica and the Denmark national team.

[14] He made his debut for the club in the Danish Cup as part of the starting lineup, where he played the first 60 minutes before being replaced by Ahmed Hassan in a 0–2 win over Karlslunde IF in the 1st round.

[16][17] He arrived at the club as a right winger, but largely played as a right wing-back with great success, which, among other things, have contributed to SønderjyskE winning a Danish Cup title and Bah making his full international debut for the Denmark national team.

[21][22] Bah arrived at the club as a replacement for Vladimír Coufal, who left the for English Premier League side West Ham United, during the season, quickly became a starter in the right-back slot, after impressing his coach Jindřich Trpišovský for his defensive positioning and attacking play, helping his team win the domestic double of the Czech First League and Czech Cup.

[23][11] The following season, Bah was named the Czech First League's Defender of the Season, making 26 appearances and scoring three goals as Slavia Prague finished runners-up behind Viktoria Plzeň, while also helping the club reached the quarter-finals of the inaugural UEFA Europa Conference League, where his team were eliminated, after losing 6–4 on aggregate to eventual finalists Feyenoord.

[24] On 7 June 2022, Bah signed a five-year contract with Primeira Liga side Benfica, for a reported fee of €8 million, joining former Slavia Prague teammate Petar Musa.

[25][26] He made his debut for the club on 5 August, replacing Gilberto in the 63rd minute and providing the assist for Rafa Silva's goal in a 4–0 home win over Arouca in the Primeira Liga.