| Clem Tillion | |
| Office1: | President of the Alaska Senate |
| Term Start1: | January 15, 1979 |
| Term End1: | January 12, 1981 |
| Predecessor1: | John Rader |
| Successor1: | Jay Kerttula |
| State Senate2: | Alaska |
| District2: | K |
| Term Start2: | January 20, 1975 |
| Term End2: | January 12, 1981 |
| Predecessor2: | W. I. "Bob" Palmer |
| Successor2: | Don Gilman |
| State House3: | Alaska |
| District3: | 10th |
| Prior Term3: | (11th district 1973–1975) |
| Term Start3: | January 28, 1963 |
| Term End3: | January 20, 1975 |
| Predecessor3: | (as the 12th district) Leo Rhode |
| Successor3: | Leo Rhode |
| Birth Date: | 3 July 1925 |
| Birth Place: | Brooklyn, New York, U.S. |
| Death Place: | Halibut Cove, Alaska |
| Party: | Republican |
| Relatives: | Sam Cotten (son-in-law) |
Clement Vincent Tillion Jr. (July 3, 1925 - October 13, 2021) was an American politician. He was a member of the Alaska House of Representatives from 1963 to 1975 and the Senate from 1975 to 1981. He was the Senate president from 1979 to 1981.[1] [2] He served in the United States Navy during World War Two as a Seabee.