| Birthname: | Piero Mentasti |
| Nationality: | Italian |
| Office: | Italian Senator from Lombardy |
| Party: | Christian Democracy |
| Constituency: | Treviglio |
| Term Start: | 8 May 1948 |
| Term End: | 24 June 1953 |
| Preceded: | None |
| Succeeded: | Title jointly held |
| Birth Date: | 1897 5, df=y |
| Birth Place: | Treviglio, Bergamo |
| Profession: | Tax advisor |
Piero Mentasti (15 May 1897 – 24 September 1958) was a member of the Italian Christian Democracy, and was an Italian Senator from Lombardy. He did not seek re-election in 1953. 35 of his essays on liberalism are compiled in On Liberal Revolution.[1]
Mentasti was appointed to the Provisional National Council of Italy in 1945, and he was elected to the Constituent Assembly in 1946. He obtained the election to the Italian Senate in 1948, serving until 1953.
1948 election for the Italian Senate