RugbyWA Premier Grade
The RugbyWA Premier Grade, known as the Fortescue Premier Grade under a naming rights deal, is the highest level of domestic club rugby played in Western Australia. It was formed in 1928 and was the first consistent competition for rugby union in Western Australia. It is competed annually form early April to the end of August, the annual pre-season tournament, the Rendezvous Hotel Perth Scarborough Challenge Cup commencing in March. The competition is managed by RugbyWA. The Premier Grade is contested by 11 teams from the Greater Perth area.
The RugbyWA Premier Grade is offered in two competitions – the Men's Premier Grade and Women's Premier Grade. The Women's Premier Grade runs from early May until the end of August, with seven teams forming the competition.
In 2022, RugbyWA partnered with Stan Sport to broadcast one Premier Grade game per round, with occasional double headers alongside the Women's competition.
Current Men's Premier Grade clubs
The following 11 Rugby Union Clubs play in the RugbyWA Fortescue Premier Grade.| Est. | Colours | Club | Location | Ground | Premierships* |
| 1948 | Associates | Swanbourne | Allen Park | 10 | |
| 1893 | Cottesloe | Cottesloe | Harvey Field | 12 | |
| 1998 | Joondalup Brothers | Joondalup | HBF Arena | N/A | |
| 1974 | Kalamunda | Forrestfield | Hartfield Park | 1 | |
| 1934 | Nedlands | Nedlands | Charles Court Reserve | 16 | |
| 1934 | Palmyra | Alfred Cove | Tompkins Park | 3 | |
| 1906 | Perth Bayswater | Morley | Pat O'Hara Reserve | 3 * | |
| 1987 | Southern Lions | Success | Success Oval | N/A | |
| 1929 | UWA | Mount Claremont | UWA Sports Park | 5 | |
| 1981 | Wanneroo | Kingsway | Kingsway Reserve | 1 | |
| 1930 | Wests Scarborough | Doubleview | Bennett Park | 12 * |
- 1 of the 3 premierships won by Perth Bayswater was won as Perth-Suburbs
- 5 of the 12 premierships won by Wests Scarborough were won as Western Suburbs and 3 of the 12 premierships won by Wests Scarborough as Wests-Scarborough
Current Women's Premier Grade clubs
The Fortescue Women's Premier Grade was instituted in 1995, and comprises seven teams.The following seven Rugby Union Clubs play in the RugbyWA Fortescue Women's Premier Grade.
| Est. | Colours | Club | Location | Ground | Premierships* |
| 1893 | Cottesloe | Cottesloe | Harvey Field | 7 | |
| 1974 | Kalamunda | Forrestfield | Hartfield Park | 2 | |
| 1934 | Palmyra | Alfred Cove | Tompkins Park | 1 | |
| 1987 | Southern Lions | Success | Success Oval | N/A | |
| 1929 | UWA | Mount Claremont | UWA Sports Park | N/A | |
| 1981 | Wanneroo | Kingsway | Kingsway Reserve | 7 | |
| 1930 | Wests Scarborough | Doubleview | Bennett Park | N/A |
- Perth Bayswater have previously competed in this competition, and are now part of the Women's Community Xs competition. They have 7 previous Premier Grade Premierships.
- Nedlands have previously competed in this competition, having won 7 previous Premierships.
Men's Premiers
| Year | Champion |
| 2025 | Wanneroo |
| 2024 | Associates |
| 2023 | Palmyra |
| 2022 | Wests Scarborough |
| 2021 | Cottesloe |
| 2020 | Cottesloe |
| 2019 | Cottesloe |
| 2018 | Associates |
| 2017 | Wests Scarborough |
| 2016 | Wests Scarborough |
| 2015 | Nedlands |
| 2014 | UWA |
| 2013 | Nedlands |
| 2012 | Associates |
| 2011 | UWA |
| 2010 | Nedlands |
| 2009 | Cottesloe |
| 2008 | Kalamunda |
| 2007 | Perth Bayswater |
| 2006 | Wests Subiaco |
| 2005 | Wests Subiaco |
| 2004 | Wests Subiaco |
| 2003 | Wests Subiaco |
| 2002 | Associates |
| 2001 | Cottesloe |
| 2000 | Nedlands |
| 1999 | Nedlands |
| 1998 | Associates |
| 1997 | Associates |
| 1996 | Perth Bayswater |
| 1995 | Nedlands |
| 1994 | Nedlands |
| 1993 | Nedlands |
| 1992 | Cottesloe |
| 1991 | Palmyra |
| Year | Champion |
| 1990 | Nedlands |
| 1989 | Nedlands |
| 1988 | Cottesloe |
| 1987 | Palmyra |
| 1986 | Nedlands |
| 1985 | Cottesloe |
| 1984 | Cottesloe |
| 1983 | Cottesloe |
| 1982 | Cottesloe |
| 1981 | Nedlands |
| 1980 | Nedlands |
| 1979 | Cottesloe |
| 1978 | Nedlands |
| 1977 | Western Suburbs |
| 1976 | Western Suburbs |
| 1975 | Western Suburbs |
| 1974 | Western Suburbs |
| 1973 | Nedlands |
| 1972 | UWA |
| 1971 | Western Suburbs |
| 1970 | Nedlands |
| 1969 | Perth Bayswater |
| 1968 | UWA |
| 1967 | UWA |
| 1966 | Associates |
| 1965 | Associates |
| 1964 | Associates |
| 1963 | Associates |