Theobald Dillon | |
|---|---|
| Viscount Dillon | |
 | |
| Tenure | 1622–1624 |
| Successor | Lucas Dillon, 2nd Viscount Dillon |
| Died | 15 March 1624 Kilfaughny, County Westmeath |
| Spouse(s) | Eleanor Tuite |
| Issue Detail | James, Eleanor, Cecily, & others |
| Father | Thomas Dillon of Ballynakill |
| Mother | Margery Dillon of Kilmore |
Theobald Dillon, 1st Viscount Dillon (died 1624), was an Irish military commander and adventurer. He held extensive lands in eastern Connacht and north-western Leinster, some acquired by sharp practices. He was a loyal supporter of Elizabeth I of England in her Irish wars.