Nancy Allan (born July 25, 1952 in Winnipeg, Manitoba) is a politician in Manitoba, Canada. She is currently a cabinet minister in the New Democratic Party government of Gary Doer.

Allen was raised in MacGregor, Manitoba and was educated at MacGregor Collegiate. From 1990 to 1994, she was Director of Development for the Canadian Diabetes Association. She worked for the Manitoba Motion Picture Industries Association from 1994 to 1995, and then as a consultant for small business and non-profit organizations from 1995 to 1999. She has also taught two continuing education courses at the University of Winnipeg.

Allan began her political career as a school trustee, serving on the Norwood School Division from 1995 to 1998 and the St. Boniface School Division from 1998 to 1999. She was elected to the Manitoba legislature in the 1999 provincial election, defeating incumbent Progressive Conservative MLA Shirley Render in the central Winnipeg riding of St. Vital by 5218 votes to 3699.

In 2003, she supported Bill Blaikie's bid to become leader of the federal New Democratic Party.

In the 2003 election, Allan was re-elected with over 63% of the popular vote. On November 4, 2003, she entered cabinet as Minister of Labour of Immigration, with responsibility for Multiculturalism, Status of Women and administration of the Workers Compensation Act.