This article lists the national football team squads for the 1990 FIFA World Cup final tournament held in Italy, between 8 June and 8 July 1990. Each country's final squad consisted of 22 players and had to be confirmed by 29 May.

Replacement of injured players was permitted during the tournament at the discretion of FIFA. Two goalkeepers (for Argentina and England) were allowed to replace their injured counterparts under this ruling. Players marked (c) were named as captain for their national squad. Number of caps counts until the start of the World Cup, including all pre-tournament friendlies. A player's age is also at the start of the tournament.

Head coach: Josef Hickersberger

Head coach: Jozef Vengloš

Head coach: Azeglio Vicini

Note: with the exception of the goalkeepers, who were assigned the traditional shirt numbers for the role (1, 12 and 22) the Italian team was numbered alphabetically within their respective positions: Defenders (from 2 to 8), Midfielders (from 9 to 14) and Forwards (from 15 to 21).

Head coach: Bob Gansler

Head coach: Carlos Bilardo