The 2017–18 Wellington Phoenix FC season was the club's 11th season since its establishment in 2007.

The club participated in the A-League for the 11th time, the FFA Cup for the fourth time, and fielded a reserves squad in the ISPS Handa Premiership for the fourth time.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Players may hold more than one non-FIFA nationality.

Source: ultimatealeague.com Last updated: 17 March 2018.