| Isabella Binney Cogswell | |
| Birth Date: | 6 July 1819 |
| Birth Place: | Halifax, Nova Scotia |
| Death Place: | Halifax, Nova Scotia |
| Known For: | philanthropy |
| Relations: | Henry Hezekiah Cogswell, father |
Isabella Cogswell (6 July 1819 - 6 December 1874) was a Canadian businesswoman. She was born in Halifax, a daughter to Henry Hezekiah Cogswell and his wife.
Cogswell showed a business acumen that stood her in good stead in funding her philanthropic activities during her lifetime. A shrewd businesswoman, her business dealings helped fund a variety of causes within her native Nova Scotia. She is commemorated with a plaque in St. Paul's Church (Halifax).