| Mary Ekstrom | |
| State House: | North Dakota |
| State: | North Dakota |
| District: | 11th |
| Term: | 1999 - 2011 |
| Succeeded: | Incumbent |
| Party: | North Dakota Democratic-NPL Party |
| Birth Date: | 11 November 1951 |
| Birth Place: | Baltimore, Maryland |
| Profession: | business owner |
| Spouse: | widowed |
| Residence: | Fargo, North Dakota |
Mary O. Ekstrom (born November 11, 1951) is a North Dakota Democratic-NPL Party member of the North Dakota House of Representatives, representing the 11th district from 1999 to 2011.