| Clubname: | Persemai Dumai |
| Nickname: | Harimau Pesisir (The Coastal Tigers) |
| Fullname: | Persatuan Sepakbola Dumai |
| Ground: | Bukit Jin Football Field Dumai, Riau |
| Capacity: | 10,000 |
| Owner: | Askot PSSI Dumai |
| Chairman: | Medya Al Edy[1] |
| Coach: | Asral Yani[2] |
| League: | Liga 4 |
| Position: | 6th in Group B (Riau zone) |
| Season: | 2023 |
| Pattern La1: | _whiteborder |
| Pattern B1: | _thinwhitestripes |
| Pattern Ra1: | _whiteborder |
| Pattern So1: | _whitetop |
| Body1: | FF0000 |
| Leftarm1: | FF0000 |
| Rightarm1: | FF0000 |
| Shorts1: | FF0000 |
| Socks1: | FF0000 |
| Pattern B2: | _upper_blue |
| Body2: | 00BFFF |
| Leftarm2: | 00BFFF |
| Rightarm2: | 00BFFF |
| Shorts2: | 00BFFF |
| Socks2: | 000080 |
Persatuan Sepakbola Dumai (simply known as Persemai) is an Indonesian football club based in Dumai, Riau. They currently compete in the Liga 4 Riau zone.[3]