Aniek Nouwen (born 9 March 1999) is a Dutch football player who plays as a defender for PSV in the Eredivisie.
Since 2016, Nouwen plays professionally for PSV at the Eredivisie, where she recorded 69 appearances and 15 goals for the team. In 2017 and 2018, she and her team were runners-up of the KNVB Women's Cup, the cup competition for women's football in the Netherlands.
Nouwen played for Netherlands U17 team at the 2015 UEFA Women's Under-17 Championship qualification and at the 2016 UEFA Women's Under-17 Championship qualification. In both occasions, the Dutch team failed to qualify to the tournament's Elite round. She also played for the Netherlands U19 team at the 2017 UEFA Women's Under-19 Championship and at the 2018 UEFA Women's Under-19 Championship. In 2017, the team reached the semi-finals where they lost 3–2 to Spain. In 2018, the team was eliminated in the Group Stage due to the goal difference criteria. Nouwen played in all matches for the Netherlands in both tournaments. In 2018, Nouwen was called to represent the Netherlands U20 team at the 2018 FIFA U-20 Women's World Cup. Again, she played all of her teams matches in the tournament. The Dutch team was eliminated in quarter-finals after losing 2–1 for England.
On 4 March 2019, Nouwen made her debut for the Netherlands senior national team when she started and played 63 minutes in the 1–0 defeat for Poland. Two days later, on 6 March, she recorded her second international cap when replaced Siri Worm in the 66th minute of the match against China PR.