Topi Niemelä (born 25 March 2002) is a Finnish professional ice hockey defenceman currently playing for Oulun Kärpät of the Finnish Liiga on loan as a prospect to the Toronto Maple Leafs of the National Hockey League (NHL). Niemelä was drafted 64th overall by the Maple Leafs in the 2020 NHL Entry Draft, ranking within the top ten of European skaters.