| Honorific-Prefix: | The Honourable |
| Henry Alfred Mullins | |
| Office: | Member of the Legislative Assembly of Manitoba for Russell |
| Predecessor: | James Fisher |
| Successor: | W. J. Doig |
| Term Start: | 1899 |
| Term End: | 1903 |
| Constituency Mp2: | Marquette |
| Parliament2: | Canadian |
| Predecessor2: | Thomas Crerar |
| Successor2: | James Allison Glen |
| Term Start2: | 1926 |
| Term End2: | 1930 |
| Office3: | Senator for Marquette, Manitoba |
| Appointed3: | R. B. Bennett |
| Term Start3: | 1935 |
| Term End3: | 1950 |
| Birth Date: | 27 August 1861 |
| Birth Place: | Owestry, England |
| Party: | Conservative |
| Otherparty: | Progressive Conservative Party of Manitoba |
Henry Alfred Mullins (August 27, 1861 - July 8, 1952) was a Canadian exporter, farmer, and politician.
Born in Oswestry, England, the son of James and Margaret Mullins, Mullins was educated in Lindsay, Ontario. In 1899, he was elected as the Conservative candidate to the Legislative Assembly of Manitoba for the electoral district of Russell. During World War I, he was a Colonel, Inspector of Supplies and Transport. He was first elected to the House of Commons of Canada for the Manitoba electoral district of Marquette in the 1925 federal election. A Conservative, he was defeated in the 1926 federal election. He was elected again in the 1930 election. In 1935, he was summoned to the Senate of Canada for the senatorial division of Marquette, Manitoba on the advice of Prime Minister R. B. Bennett. He retired in 1950.
A Methodist, he married Annie M. Langrill in 1885. They had two daughters.