The mixed pairs BC3 boccia event at the 2016 Summer Paralympics was contested from 10 September to 13 September at Sambodromo in Rio de Janeiro.

8 teams of competitors took part.

The top two teams from each of two pools then entered into a quarterfinal single-elimination stage, with the losing semifinalists playing off for bronze.

[1] * : Tie for first broken on head to head record, relevant matches in bold.

**: Tie for third broken on head to head record, relevant matches in bold.