| Thomas J. Hillery | |
| Office1: | Member of the New Jersey Senate |
| Constituency1: | Morris County (1954–1966) District 10 (at-large) (1966–1968) |
| Term Start1: | January 12, 1954 |
| Term End1: | January 9, 1968 |
| Predecessor1: | David Young III |
| Successor1: | Harry L. Sears Joseph J. Maraziti |
| Office2: | Member of the New Jersey General Assembly from the Morris district |
| Term Start2: | January 14, 1947 |
| Term End2: | January 12, 1954 |
| Birth Date: | 16 June 1904 |
| Birth Place: | Boonton, New Jersey |
| Death Place: | Denville Township, New Jersey |
| Party: | Republican |
Thomas J. Hillery (June 16, 1904 – December 1, 1991) was an American politician who served in the New Jersey General Assembly from 1947 to 1954 and in the New Jersey Senate from 1954 to 1968.
He died of cardiac arrest on December 1, 1991, in Denville Township, New Jersey at age 87.[1]
His father Thomas J. Hillery also served in the Assembly and the Senate.[2]