Alexander Cox, also known as Alex Cox, is a Dutch field hockey coach and a former field hockey player. He guided SV Kampong to the 2015–16 Euro Hockey League title and two successive Hoofdklasse titles in 2016–17 and 2017–18. He has also worked as an assistant coach with both the Netherlands men's and Netherlands women's teams. He was head coach of the Netherlands U21 team that won the 2017 Men's EuroHockey Junior Championship. Between 2018 and 2019, Cox served as head coach of the Ireland men. He is married to Marsha Marescia, the former South Africa women's international.