The 2019 CAMS Australian Formula 4 Championship (initially known for sponsorship purposes as the CAMS Jayco Australian Formula 4 Championship and later as the CAMS Payce Australian Formula 4 Championship)[1] was the fifth season of the Australian Formula 4 Championship, a motor racing competition for open-wheel racing cars complying with Formula 4 regulations, which were created by the Fédération Internationale de l'Automobile (FIA) for entry-level open-wheel championships. Teams and drivers competed in eighteen races at four venues, starting on 14 March and ending on 14 July.[2]
| Team | Drivers | Rounds | ||
|---|---|---|---|---|
 AGI Sport | 1 | Jayden Ojeda[3] | 1 | |
| 7 | Christian Mansell[4] | 3–4 | ||
| 12 | Josh Smith[5] | 1 | ||
| 23 | Luis Leeds[6] | All | ||
| 39 | Antonio Astuti[7] | All | ||
| 57 | Jackson Burton[8] | 1 | ||
| Team BRM | 5 | Ryan Suhle[9] | All | |
| 15 | Lochie Hughes | All | ||
| 16 | Tommy Smith | 1–2, 5–6 | ||
| 26 | Harry Hayek | 3–4 | ||
| 69 | Brenton Griguol[10] | 1 | ||
| 76 | Emerson Harvey[11] | All | ||
 MTEC Motorsport | 9 | Taylor Cockerton[12] | 1 | |
| 99 | Ryan Yardley | 1 | ||
| Patrizicorse | 11 | Jackson Walls[13] | All | |
| 29 | Aaron Zerefos[14] | 1 | ||
| Junior Racing Development | 14 | Matt Holmes[15] | 1 | |
| 31 | Heath Collinson | 1 | ||
 Rossoverde Racing | 21 | Christian Lester | 1 | |
| Tank Motorsport | 68 | Dylan Thomas[16] | 1 |
All rounds were held in Australia. For the first time the series supported the Formula 1 Australian Grand Prix.[17] The remaining events supported the Shannons Nationals.
Championship points were awarded in each race as follows:[18]
| Position | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th |
|---|---|---|---|---|---|---|---|---|---|---|
| Points | 25 | 18 | 15 | 12 | 10 | 8 | 6 | 4 | 2 | 1 |
| Bold – Pole Italics – Fastest lap † — Did not finish, but classified | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||