| David Tiernan Disney | |
| Office: | Member of the U.S. House of Representatives from Ohio's 1st district |
| Term Start: | March 4, 1849 |
| Term End: | March 3, 1855 |
| Predecessor: | James J. Faran |
| Successor: | Timothy C. Day |
| Office1: | 19th Speaker of the Ohio State Senate |
| Term Start1: | December 2, 1833 |
| Term End1: | November 30, 1834 |
| Predecessor1: | Samuel R. Miller |
| Successor1: | Peter Hitchcock |
| Office2: | 24th Speaker of the Ohio House of Representatives |
| Term Start2: | December 3, 1832 |
| Term End2: | December 1, 1833 |
| Predecessor2: | William Blackstone Hubbard |
| Successor2: | John H. Keith |
| Office3: | Member of the Ohio Senate |
| Term3: | 1833-1834 1843-1844 |
| Office4: | Member of the Ohio House of Representatives |
| Term4: | 1829 1831-1832 |
| Party: | Democratic |
| Birth Date: | 25 August 1803 |
| Birth Place: | Baltimore, Maryland |
| Death Place: | Washington, D.C. |
| Restingplace: | Spring Grove Cemetery |
David Tiernan Disney (August 25, 1803 – March 14, 1857) was a U.S. Representative from Ohio for three terms from 1849 to 1855. He also served as Speaker of both the Ohio State Senate and the Ohio House of Representatives.
David Disney was born in Baltimore, Maryland, but moved to Ohio in 1807 where he spent most of his life. After he was admitted to the bar and commenced practice in Cincinnati.
He served as member of the Ohio House of Representatives in 1829, 1831, and 1832, serving as speaker for the 1832-33 session. After his last term in the house, he moved over to the Ohio State Senate, where he was immediately elected Speaker of the Senate (the predecessor position to the President of the Senate), in 1833. He was elected for another term in 1834, and would serve two more in 1843 and 1844. He served as delegate to the Democratic National Convention in 1848 where Lewis Cass was nominated for President.
Disney was elected as a Democrat to the Thirty-first, Thirty-second, and Thirty-third Congresses, and served as chairman of the Committee on Elections (Thirty-second Congress), Committee on Public Lands (Thirty-third Congress). He was an unsuccessful candidate for renomination in 1854.
He died in 1857 in Washington, D.C., March 14, 1857. He was interred in Spring Grove Cemetery, Cincinnati, Ohio.