| Leongino Unzain | |
| Fullname: | Leongino Unzain Taboada |
| Height: | 1.66 m |
| Birth Date: | 16 May 1925 |
| Birth Place: | Guarambaré, Paraguay |
| Position: | Striker |
| Years3: | 1953–1956 |
| Years4: | 1956–1957 |
| Years5: | 1957–1958 |
| Years6: | 1958 |
| Years7: | 1958–1959 |
| Clubs1: | Olimpia Asunción |
| Clubs2: | Lazio |
| Clubs3: | Toulon |
| Clubs4: | Bordeaux |
| Clubs5: | Béziers |
| Clubs6: | Rouen |
| Clubs7: | Grenoble |
| Caps1: | ? |
| Goals1: | ? |
| Caps2: | ? |
| Goals2: | ? |
| Caps3: | 85 |
| Goals3: | 51 |
| Caps4: | 30 |
| Goals4: | 13 |
| Caps5: | 8 |
| Goals5: | 2 |
| Caps6: | 23 |
| Goals6: | 8 |
| Caps7: | 29 |
| Goals7: | 10 |
| Nationalyears1: | 1950–? |
| Nationalteam1: | Paraguay |
Leongino Unzain Taboada (16 May 1925 – 23 March 1990) was a Paraguayan football striker.
Unzain was part of the Paraguay national football team that participated in the 1950 FIFA World Cup.[1] During his career he played for teams like Olimpia Asunción of Paraguay and S.S. Lazio of Italy.[2]