2021 F4 Danish Championship

The season began at Padborg Park in May and concluded at Jyllandsringen in October.

[1] Mads Hoe became the drivers' champion, having driven for his own team in F5 machinery.

[11] The planned opening round at Padborg Park on 24–25 April was postponed to 15–16 May due to the pandemic restrictions and economic reasons.

[12] The round at Sturup Raceway was cancelled due to the travel restrictions between Denmark and Sweden.

No points are awarded for pole position or fastest lap.