Nana Takagi (髙木 菜那) (born 2 July 1992) is a Japanese former speed skater who is a member of the Nidec Sankyo speed skating team.

[1] Takagi has won a pair of silver medals at the World Junior Speed Skating Championships, in two team pursuit events.

As of September 2014, Takagi has one World Cup podium finish, as part of the Japanese team pursuit squad at Heerenveen in 2013–14.

[3][4] In 2015 Nana Takagi became a world champion, when in the 2015 World Single Distance Championships she won the gold medal in the team pursuit where she participated together with her sister Miho Takagi and compatriot Ayaka Kikuchi.

[5] Takagi won a second gold medal at the 2018 Olympics in the Women's mass start event.