| Loek Postma | |
| Birth Date: | 5 March 2003 |
| Birth Place: | Uitgeest, The Netherlands |
| Height: | 1.85 m |
| Position: | Defender |
| Currentclub: | Vitesse |
| Clubnumber: | 6 |
| Youthyears1: | –2014 |
| Youthclubs1: | FC Uitgeest |
| Youthyears2: | 2014–2021 |
| Youthclubs2: | Alkmaar |
| Years1: | 2021–2024 |
| Clubs1: | Jong AZ |
| Caps1: | 50 |
| Goals1: | 1 |
| Years2: | 2024– |
| Clubs2: | Vitesse |
| Caps2: | 0 |
| Goals2: | 0 |
| Nationalyears1: | 2017–2018 |
| Nationalteam1: | Netherlands U15 |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
| Club-Update: | 29 May 2024 |
| Nationalteam-Update: | 17 February 2018 |
Loek Postma (born 5 March 2003) is a Dutch footballer who plays for club Vitesse.
Postma moved from his home-town club FC Uitgeest to the academy of AZ in 2014. He was awarded his first professional contract with AZ in June 2021.[1] The deal was for 3 years with the option of a fourth.[2] Postma made his league debut on 22 April 2022 in a 3-3 draw with Excelsior Rotterdam in the Eerste Divisie at the Stadion Woudestein.[3] On 3 November 2023, he scored his first league goal with an injury time equaliser in a 2-2 draw away at VVV Venlo.[4]
On 8 August 2024, Postma signed a two-year contract with Vitesse.[5]