| Léo Simas | |
| Fullname: | Leonardo da Silva Simas |
| Birth Date: | 12 November 1998 |
| Birth Place: | Catanduva, Brazil |
| Height: | 1.72 m |
| Position: | Defender, Midfielder |
| Currentclub: | Patriotas |
| Youthclubs1: | Grêmio Catanduvense |
| Years1: | 2016 |
| Clubs1: | Grêmio Catanduvense |
| Caps1: | 2 |
| Goals1: | 0 |
| Years2: | 2017–2020 |
| Clubs2: | Athletico Paranaense |
| Caps2: | 4 |
| Goals2: | 0 |
| Years3: | 2019 |
| Clubs3: | → Orlando City B (loan) |
| Caps3: | 22 |
| Goals3: | 2 |
| Years4: | 2021 |
| Clubs4: | Rio Branco |
| Caps4: | 13 |
| Goals4: | 0 |
| Years5: | 2022 |
| Clubs5: | Grêmio Anápolis |
| Years6: | 2023 |
| Clubs6: | Velo Clube |
| Caps6: | 1 |
| Goals6: | 0 |
| Years7: | 2023– |
| Clubs7: | Patriotas |
| Club-Update: | 19 February 2023 |
Leonardo da Silva Simas (born 12 November 1998), known as Léo Simas, is a Brazilian footballer who plays for Patriotas.