The 2023–24 Segunda División play-offs were played from 8 June to 23 June 2024 and determined the third team promoted to La Liga for the following season.
[1] Teams placed between 3rd and 6th position took part in the promotion play-offs.
The team that scored more goals on aggregate over the two legs advanced to the next round.
If the aggregate score was level, then thirty minutes of extra time would be played.
If the aggregate level was still level after extra time, the winner would be the best positioned team in the regular season.