- Who
- Lionel Messi
- What
- 21 total number
- Where
- Spain ()
- When
The most assists in a single La Liga season is 21, achieved by Lionel Messi (Argentina) playing for FC Barcelona, during the 2019/20 season.
The previous record was held by Xavi Hernández (Spain), a former teammate of Messi, who achieved 20 assists during the 2008/09 season.
