| Full Name: | Maarten Johannes Arens |
| Birth Place: | Diemen, North Holland |
| Country: | Netherlands |
| Weight Class: | 81 kg, 86 kg |
| Rank Ref: | [1] |
| Dan: | 6 |
| Worlds Rank: | 7 |
| Worlds Year: | 1999 |
| Worlds Weight: | Men's 81 kg |
| Regionals Type: | EU |
| Regionals Rank: | 1 |
| Regionals Year: | 1995 |
| Regionals Weight: | Men's 86 kg |
| Olympics Rank: | 9 |
| Olympics Year: | 2000 |
| Olympics Weight: | Men's 81 kg |
| Updated: | 13 March 2023 |
Maarten Johannes Arens (born 20 May 1972 in Diemen, North Holland) is a Dutch judoka. He has been European Champion (1995) in Birmingham in the 86 kg category, 4 times Dutch champion, and winner of the 2000 Tournoi de Paris in the 81 kg category. At the Sydney Olympics he finished in 9th place in the 81 kg category.
Arens was a member of Judo club Hans Meester Hoorn till 1992, later becoming a member of the judo club KENAMJU Haarlem.
In 2001 he started as national junior coach of the Dutch Judo Federation, among his pupils: Dex Elmont, Jeroen Mooren and Henk Grol. In 2005 he became head coach of the Dutch Judo Men. He stayed head coach until the Summer Olympics 2016 in Rio de Janeiro. In this period he was personal coach of: Guillaume Elmont, Dex Elmont, Henk Grol, Ruben Houkes and Noel van t End.
After the Dutch Judo Federation has decided to centralize their program, he became head coach men and women and head of the National Training Centrer at Papendal. He was coach of Henk Grol, Marhinde Verkerk and Kim Polling. He was also coach of the team with: Benito Maij, JP Bell, Michael Bazynksi, Garmt Zijlstra, Akkie Muilwijk, Zeger van Oirschot and Matthew Purssey
The results of Arens as coach
| Year | Tournament | Place | Weight class | |
|---|---|---|---|---|
| 2000 | European Judo Championships | 7th | Half middleweight (81 kg) | |
| 1999 | World Judo Championships | 7th | Half middleweight (81 kg) | |
| European Judo Championships | 2nd | Half middleweight (81 kg) | ||
| 1998 | European Judo Championships | 5th | Half middleweight (81 kg) | |
| 1995 | European Judo Championships | 1st | Middleweight (86 kg) |
Arens got promoted to 6th dan on 27 November 2011.