2016 Tercera División play-offs
      
The 2016 Tercera División play-offs to Segunda División B from Tercera División (Promotion play-offs) were the final playoffs for the promotion from 2015–16 Tercera División to 2015–16 Segunda División B. The first four teams in each group took part in the play-off.
Format
The eighteen group winners have the opportunity to be promoted directly to Segunda División B. The eighteen group winners were drawn into a two-legged series where the nine winners will promote to Segunda División B. The nine losing clubs will enter the play-off round for the last nine promotion spots.
The eighteen runners-up were drawn against one of the eighteen fourth-placed clubs outside their group and the eighteen third-placed clubs were drawn against one another in a two-legged series. The twenty-seven winners will advance with the nine losing clubs from the champions' series to determine the eighteen teams that will enter the last two-legged series for the last nine promotion spots. In all the playoff series, the lower-ranked club play at home first. Whenever there is a tie in position (e.g. like the group winners in the champions' series or the third-placed teams in the first round), a draw determines the club to play at home first.
 Group Winners Promotion Play-off 
 Qualified teams 
The draw took place in the RFEF headquarters, in Las Rozas (Madrid).
 Non-champions Promotion Play-off 
First round
Qualified teams
The draw took place in the RFEF headquarters, in Las Rozas (Madrid), on 12 May 2014, 17:00 CEST.
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| Group | Position | Team |  
| 1 | 2nd |  |  
| 2 | 2nd |  |  
| 3 | 2nd |  |  
| 4 | 2nd |  |  
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| 6 | 2nd |  |  
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| 14 | 2nd |  |  
| 15 | 2nd |  |  
| 16 | 2nd |  |  
| 17 | 2nd |  |  
| 18 | 2nd |  |  | 
| Group | Position | Team |  
| 1 | 3rd |  |  
| 2 | 3rd |  |  
| 3 | 3rd |  |  
| 4 | 3rd |  |  
| 5 | 3rd |  |  
| 6 | 3rd |  |  
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| 9 | 3rd |  |  
| 10 | 3rd |  |  
| 11 | 3rd |  |  
| 12 | 3rd |  |  
| 13 | 3rd |  |  
| 14 | 3rd |  |  
| 15 | 3rd |  |  
| 16 | 3rd |  |  
| 17 | 3rd |  |  
| 18 | 3rd |  |  | 
| Group | Position | Team |  
| 1 | 4th |  |  
| 2 | 4th |  |  
| 3 | 4th |  |  
| 4 | 4th |  |  
| 5 | 4th |  |  
| 6 | 4th |  |  
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| 10 | 4th |  |  
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| 12 | 4th |  |  
| 13 | 4th |  |  
| 14 | 4th |  |  
| 15 | 4th |  |  
| 16 | 4th |  |  
| 17 | 4th |  |  
| 18 | 4th |  |  |  | 
See also
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 |  |  | Level 3 |  | 
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 |  |  | Level 4 |  | 
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 |  |  | | Tercera División - Play-Offs |  |  |  |  | 
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| | 2015–16 in Spanish football | 
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 |  |  | Domestic cups |  | 
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 |  |  | European competitions |  | 
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 |  |  | Related to national teams |  | 
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 |  |  | Women's football |  | 
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