See main article: 1999 Rugby World Cup. This article lists the official squads for the 1999 Rugby World Cup in Wales.
Head coach: Jim Telfer
Head coach: Nick Mallett
Head coach: 
Alfonso Feijoo
Head coach: Daniel Herrera
Head coach: Clive Woodward
Leon Lloyd and Martyn Wood were called up on 23 September as injury replacements for Kyran Bracken and David Rees.[1]
Head coach: 
Massimo Mascioletti
Head coach: 
John Hart
Head coach: 
Polutele Tuʻihalamaka
Head coach: Brad Johnstone
Head coach: 
Rudy Joubert
Head coach: 
Jean-Claude Skrela
1 Fabien Galthié was called up to the squad to replace Pierre Mignoni, who suffered an injury mid-tournament.
Wales named an initial 30-man squad for the tournament in June 1999. The highlight of the selection was centre Jason Jones-Hughes, who was born in Australia, but was believed to be qualified for Wales through his father. The Australian Rugby Union (ARU) disputed Jones-Hughes' selection because he had already played for the Australian Barbarians, who were considered Australia's de facto second team.[2] This led to a protracted legal battle over Jones-Hughes' eligibility for Wales, in which the International Rugby Board initially ruled in Australia's favour;[3] on appeal, Wales were allowed to select Jones-Hughes,[4] but the ARU refused to release him from his contract with New South Wales.[5] Nevertheless, Jones-Hughes was ultimately allowed to join the Wales team and was named on the bench for the tournament opener against Argentina.[6]
Head coach: Graham Henry
Head coaches: Alex Wyllie and 
Héctor Mendéz
Head coach: Bryan Williams
Head coach: Warren Gatland
Gordon D'Arcy replaced the injured Girvan Dempsey on 11 September 1999.[8]
Head coach: 
Rod MacQueen
Head coach: Mircea Paraschiv