| Club: | Real Sociedad |
| Season: | 1999–2000 |
| Ownertitle: | Owner |
| Chrtitle: | President |
| Chairman: | Luis Uranga Otaegui |
| Mgrtitle: | Head coach |
| Manager: | Bernd Krauss (until 25 October) Javier Clemente (from 27 October) |
| Stadium: | Anoeta |
| League: | La Liga |
| League Result: | 13th |
| Cup1: | Copa del Rey |
| Cup1 Result: | First round |
| League Topscorer: | Óscar de Paula (9) |
| Season Topscorer: | Óscar de Paula (9) |
| Average Attendance: | 21,666 |
| Largest Win: | Real Sociedad 4–1 Atlético Madrid Real Sociedad 3–0 Valladolid Real Sociedad 4–1 Athletic Club |
| Largest Loss: | Valencia 4–0 Real Sociedad |
| Prevseason: | 1998–99 |
| Nextseason: | 2000–01 |
The 1999–2000 season was Real Sociedad's 91st season in existence and the club's 33rd consecutive season in the top flight of Spanish football. In addition to the domestic league, Real Sociedad participated in this season's edition of the Copa del Rey. The season covers the period from 1 July 1999 to 30 June 2000.
Head coach Bernd Krauss was dismissed after nine matches due to poor results and replaced by Javier Clemente two days later.[1]
See main article: 1999–2000 La Liga.
See main article: 1999–2000 Copa del Rey.
| width=15 | width=15 | width=15 | width=15 | width=145 | Player | width=90 | La Liga | width=90 | Copa del Rey | width=80 | Total | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | FW | 21 |  | Óscar de Paula | 9 | 0 | 9 | ||||||||
| 2 | FW | 18 | | Iñigo Idiakez | 5 | 1 | 6 | ||||||||
| 3 | FW | 34 |  | Edgaras Jankauskas | 4 | 0 | 4 | ||||||||
| 4 | MF | 10 | | Javier de Pedro | 3 | 0 | 3 | ||||||||
| MF | 11 | | Mikel Aranburu | 3 | 0 | 3 | |||||||||
| MF | 19 |  | Dmitri Khokhlov | 3 | 0 | 3 | |||||||||
| FW | 9 |  | Víctor Bonilla | 3 | 0 | 3 | |||||||||
| Totals | 42 | 1 | 43 | ||||||||||||