Leslie Russell Thoms (March 7, 1938 - December 5, 1999) was a Canadian politician, who represented the electoral district of Grand Bank in the Newfoundland House of Assembly from 1979 to 1982. He was a member of the Liberal Party.

Prior to his election to the legislature, Thoms had been a supporter of Bill Rowe's 1977 campaign for the Liberal leadership,^[1] although Rowe stepped aside in favour of Don Jamieson by the time of the 1979 Newfoundland general election. Thoms was elected to the legislature in that election.^[2] Due to the Liberal Party's loss, Jamieson stepped down as leader following the election and Thoms ran as a candidate in the resulting leadership convention,^[3] but ultimately lost to Len Stirling.^[4]

Thoms was defeated in the 1982 Newfoundland and Labrador general election by Bill Matthews of the Progressive Conservatives.

He subsequently worked as a staff lawyer in the provincial Ministry of Justice.^[5]

He died on December 5, 1999, in St. John's.^[6]