Niko Mikkola (born 27 April 1996) is a Finnish professional ice hockey defenceman. He is currently playing with the San Antonio Rampage in the American Hockey League (AHL) while under contract as a prospect with the St. Louis Blues in the National Hockey League (NHL). Mikkola was selected by the Blues, 127th overall, in the 2015 NHL Entry Draft.
Mikkola made his Liiga debut playing with KalPa during the 2014–15 Liiga season. On May 29, 2017, despite interest from St. Louis to sign his entry-level deal, Mikkola opted to continue his professional career in the Liiga, signing a two-year deal with fellow Finnish outfit, Tappara.
By still harbouring NHL ambitions, Mikkola opted to attend the St. Louis Blues 2017 training camp in preparation for the 2017–18 season. He was assigned back to Tappara after competing in two pre-season contests with the Blues on September 25, 2017. In his only season with Tappara, Mikkola added 2 goals and 11 points in 50 regular season games before helping the club to a silver medal in the post-season, leading the league in plus-minus.