Elin Nilsen (born 12 August 1968) is a Norwegian former cross-country skier who competed from 1990 to 2004.

She won three silver medals in the 4 × 5 km relay at the Winter Olympics (1992, 1994, 1998).

Nilsen also won five 4 × 5 km relay medals at the Nordic skiing World Championships with three silvers (1995, 1997, 2001) and two bronzes (1991, 1993).

Her best individual finish at the World Championships was fourth in the 15 km event in 1999.

Nilsen won four races in career at all levels from 1994 to 2002 She represented Bossmo & Ytteren IL.