| Club: | Sporting CP |
| Season: | 1999–2000 |
| Chrtitle: | President |
| Chairman: | António Dias da Cunha |
| Mgrtitle: | Head coach |
| Manager: | Giuseppe Materazzi (until September) Augusto Inácio (from September) |
| Stadium: | Estádio José Alvalade |
| League: | Primeira Liga |
| League Result: | 1st |
| Cup1: | Taça de Portugal |
| Cup1 Result: | Runners-up |
| Cup2: | UEFA Cup |
| Cup2 Result: | First round |
| League Topscorer: | Alberto Acosta (22) |
| Highest Attendance: | Alberto Acosta (24) |
| Prevseason: | 1998–99 |
| Nextseason: | 2000–01 |
The 1999–2000 season was Sporting Clube de Portugal's 94th season in existence and the club's 66th consecutive season in the top flight of Portuguese football. In addition to the domestic league, Sporting CP will participate in this season's editions of the Taça de Portugal and UEFA Cup. The season covers the period from 1 July 1999 to 30 June 2000.[1]
Giuseppe Materazzi was signed as manager, but was sacked after only a few months, following a shock 3-0 defeat to Viking in the UEFA Cup. He was replaced by Augusto Inácio, who was unable to reverse Sporting's fortunes on the continent but still guided them to the title and the domestic cup final.
See main article: 1999–2000 Primeira Liga.
See main article: 1999–2000 Taça de Portugal.
See main article: 1999–2000 UEFA Cup.