| Honorific-Prefix: | The Honourable |
| Lloyd Costello | |
| Constituency Am: | Braddon |
| Assembly: | Tasmanian House of |
| Term Start: | 2 May 1959 |
| Term End: | 16 May 1975 |
| Successor: | John Coughlan |
| Birth Date: | 1922 12, df=yes |
| Birth Place: | Flowerdale, Tasmania, Australia |
| Nationality: | Australian |
| Party: | Labor Party |
| Allegiance: | Australia |
| Branch: | Royal Australian Air Force |
| Serviceyears: | 1941–1946 |
| Rank: | Corporal |
Lloyd Edwin Albert Costello (10 December 1922 - 20 June 2001) was an Australian politician.
He was born in Flowerdale, and served in the Royal Australian Air Force from 1941 to 1946.[1] In 1959 he was elected to the Tasmanian House of Assembly as the Labor member for Braddon. He served as Chair of Committees from 1961 to 1969 and as a minister from 1972 until his resignation from the House in 1975.[2]