Sudbury is the name of a federal electoral district in Ontario, Canada. Its population is 89,443 (2001). The district is one of two serving the city of Greater Sudbury, Ontario.

Provincially, Sudbury had its own riding as early as 1905. Federally, however, Sudbury was part of the Nipissing riding until 1947, when the Sudbury riding was created. It initially included a large portion of the Sudbury District; in 1952, the boundaries were narrowed significantly to include only the city of Sudbury, the geographic township of McKim and the town of Copper Cliff. The rest of the original Sudbury riding was incorporated into the new riding of Nickel Belt.

In 1976, Sudbury's growth in population led the riding to shrink further. It now included only the northern half of the city; the city's southern half was incorporated into Nickel Belt.

In 2004, a decline in population led to this riding expanding geographically to include the former Town of Walden, now part of the City of Greater Sudbury. The remainder of the city continues to be served by the Nickel Belt riding.

Members of Parliament for Sudbury

1. Léoda Gauthier, Liberal (1949-1953)
2. Rodger Mitchell, Liberal (1953-1967)
3. Bud Germa, NDP (1967-1968)
4. Jim Jerome, Liberal (1968-1980)
5. Doug Frith, Liberal (1980-1988)
6. Diane Marleau, Liberal (1988-present)

Members of the Legislative Assembly of Ontario for Sudbury

1. Francis Cochrane, Conservative (1905-1911)
2. Charles McCrea , Conservative (1911-1934)
3. Edmond Lapierre, Liberal (1934-1937)
4. James Maxwell Cooper , Liberal (1937-1943)
5. Robert Carlin , Co-operative Commonwealth Federation (1943-1948)
6. Welland Gemmell , Progressive Conservative (1948-1955)
7. Gerald Monaghan , Progressive Conservative (1955-1959)
8. Elmer Sopha, Liberal (1959-1971)
9. Bud Germa, New Democrat (1971 - 1981)
10. Jim Gordon, Progressive Conservative (1981 - 1987)
11. Sterling Campbell , Liberal (1987 - 1990)
12. Sharon Murdock, New Democrat (1990 - 1995)
13. Rick Bartolucci, Liberal (1995 - present)