Alo Bärengrub (born 12 February 1984) is a retired Estonian professional footballer who played as a centre-back.

Bärengrub was born in Kehtna, and made his first-team debut for Lelle in Estonia's second division Esiliiga at the age of 16 in 2000.

[3] The defender was also rejected at his old club Flora as the team decided to give youth players a chance.

[6] He was one of three players to play every single minute of the league season, others being teammate Ken Kallaste and Narva Trans defender Tomas Rimas.

[8] Bärengrub played 48 games for Estonia national football team between 2004 and 2014.