Markkus Keel (born 18 August 1995) is an Estonian volleyball player.

[1] He is a member of the Estonian national team since 2017[2] and represented his country at the 2019 European Volleyball Championship[citation needed].

He started his professional career in club Pärnu VK.

[1] His father is a volleyball player and coach Avo Keel.

His brother is a volleyball player Martti Keel.