| Frank Smith | |
| State Senate: | Montana |
| State: | Montana |
| District: | 31 |
| Succeeded: | Mike Fox |
| Party: | Democratic |
| Birth Date: | 27 September 1942 |
| Birth Place: | Poplar, Montana, U.S. |
| Term Start: | January 2, 2017 |
| Term End: | January 4, 2021 |
| Term Start1: | January 3, 2005 |
| Term End1: | January 5, 2009 |
| Successor1: | Jonathan Windy Boy |
| Education: | Dawson College |
| District2: | 16 |
| Legislature: | Montana House of Representatives |
| Prior Term: | 1998-2004 |
| District1: | 98 |
| Legislature2: | Montana State Senate |
Frank J. Smith (born September 27, 1942) is an American politician, previously serving as a member of the Montana Senate, representing District 16. He served in the Montana Senate from 2004 until 2008 when he was succeeded by Jonathan Windy Boy. He was re-elected to the Montana Senate in 2016, and served from 2017 to 2020.[1] In 2020, he was elected to the Montana House of Representatives, representing District 31.[2]
He was previously a member of the Montana House of Representatives. He served from 1998 through 2004 and then again from 2011 to 2013.He was a candidate of Montana House of Representatives from District 31 in 2022[3]