| Season: | 2018–19 |
| Competition: | Oman Professional League |
| Winners: | Dhofar |
| Relegated: | Al-Shabab, Sur, Majees |
| Continentalcup1: | AFC Champions League |
| Continentalcup2: | AFC Cup |
| Continentalcup3: | GCC Champions League |
| Matches: | 182 |
| Total Goals: | 469 |
| League Topscorer: | Mohammed Al-Ghassani (18 goals) |
| Prevseason: | 2017–18 |
| Nextseason: | 2019–20 |
The 2018–19 Oman Professional League is the 43rd edition of the Oman Professional League, the top football league in Oman. The season started on August 17, 2018.[1]
Restricting the number of foreign players to four per team, including a slot for a player from AFC countries. A team could use four foreign players on the field during each game including at least one player from the AFC country.
| Club | Player 1 | Player 2 | Player 3 | AFC Player | GCC Player | Former Players | |
|---|---|---|---|---|---|---|---|
| Al-Nahda |  Alexandre Cléber Thiago Furtuoso | ||||||
| Al-Nasr |  Fady Farid |  Daniel Etor |  Sheka Fofanah | ||||
| Al-Oruba[2] | Vinícius Calamari | ||||||
| Al-Rustaq |  Armand Niamke |  Philippe Lincourt-Joseph | |||||
| Al-Shabab |  Amro Jenyat | ||||||
| Al-Suwaiq | Tiago Lopes | Eslam Abdelmeguid | Thaer Krouma | Edson Reis | |||
| Dhofar |  Odai Khadr | ||||||
| Mirbat |  Theo Lewis Weeks | ||||||
| Muscat[3] | Moustapha Kouyaté |  Abdou Fall | |||||
| Oman[4] [5] | Da Matta | Washington | Leandro Cearense | ||||
| Saham | Tinga | Willen Evson Amir Arsalan Motahari | |||||
| Sur |  Samba Tounkara |