3x3 basketball at the 2018 Mediterranean Games
The 3x3 basketball tournament at the 2018 Mediterranean Games in Tarragona took place between 27 and 29 June. The men's tournament was held at the Camp de Mart Auditorium. A women's tournament was also organized, after it was cancelled in 2013 because too few teams applied.
Men
; Participating Nations| Federation | Nation |
| FIBA Africa | |
| FIBA Europe |
Preliminary Round
All times are Central European Summer Time.Women
; Participating Nations| Federation | Nation |
| FIBA Europe |