| Honorific Prefix: | The Honourable |
| Theodore Atkinson | |
| Office: | Secretary of New Hampshire |
| Term Start: | 1741 |
| Term End: | 1762 |
| Predecessor: | Richard Waldron |
| Successor: | Theodore Atkinson Jr. |
| Birth Date: | December 20, 1697 |
| Birth Place: | New Castle, New Hampshire |
| Death Date: | September 22, 1779 (aged 81) |
| Death Place: | Portsmouth, New Hampshire |
| Occupation: | Politician, lawyer, military officer |
| Alma Mater: | Harvard College (g. 1718) |
| Parents: | Theodore Atkinson III Mary Atkinson |
| Allegiance: | New Hampshire |
| Branch: | New Hampshire Militia |
| Rank: | Colonel |
Colonel Theodore Atkinson (December 20, 1697 – September 22, 1779) was an American politician, lawyer and military officer who served as the secretary of New Hampshire from 1741 to 1762.
Theodore Atkinson was born in New Castle, New Hampshire on December 20, 1697. His parents were Colonel Theodore Atkinson III and his wife Mary. Atkinson was sent to study at Harvard College, graduating from the institution in 1718. A year later, his father died, and by the mid-1730's, Atkinson had moved to Portsmouth, New Hampshire, where he worked as a lawyer.[1]
In 1741, Atkinson was appointed as the secretary of New Hampshire, serving in the office until 1762, when he passed it to his son Theodore. However, after Theodore died in 1769, Atkinson once again served in the office until 1775. Atkins also served in the New Hampshire Militia at the rank of colonel.[2]
Atkinson died in Portsmouth on September 22, 1779.[3]