2015–16 Croatian Third Football League
The 2015–16 Treća HNL season is the 25th since its establishment. The first matches of the season will be played on 22 August 2015, and the season will end on 4 June 2016.
Overview before the season
50 teams will join the league, including one relegated from the 2014–15 Druga HNL and six promoted from the lower leagues.;Relegated from 2014–15 Druga HNL:
- Pomorac '
- Bistra '
- Marsonia
Groups
East
Stadia and locations
| Team | Home city | Stadium | Capacity |
| Belišće | Belišće | Gradski stadion | 5,000 |
| Bjelovar | Bjelovar | Gradski stadion | 4,000 |
| BSK | Bijelo Brdo | Igralište BSK-a | 1,000 |
| Đakovo Croatia | Đakovo | Stadion na Pazarištu | 3,000 |
| Koprivnica | Koprivnica | Gradski stadion | 3,500 |
| Marsonia | Slavonski Brod | Stadion uz Savu | 8,000 |
| Međimurje | Čakovec | SRC Mladost | 6,000 |
| Mladost Antin | Antin | Paža | 500 |
| Mladost Ždralovi | Ždralovi | Igralište NK Mladosti | 1,000 |
| Oriolik | Oriovac | Igralište NK Oriolika | 1,500 |
| Podravina | Ludbreg | Igralište NK Podravine | 5,000 |
| Slavija | Pleternica | Stadion Stjepan Zdenko Šivo | 700 |
| Slavonija | Požega | Stadion kraj Orljave | 4,000 |
| Varaždin | Varaždin | Stadion Anđelko Herjavec | 9,099 |
| Višnjevac | Višnjevac | Stadion NK Višnjevca | 1,500 |
| Vukovar '91 | Vukovar | Gradski stadion | 6,000 |
League table
Results
South
Stadia and locations
| Team | Home city | Stadium | Capacity |
| BŠK Zmaj | Blato | Zlinje | 3,000 |
| Croatia Zmijavci | Zmijavci | ŠRC Marijan Šuto Mrma | 1,000 |
| Hajduk II | Split | Poljud | 34,448 |
| Hrvace | Hrvace | Gradski stadion | 3,075 |
| Jadran LP | Ploče | Igralište NK Jadrana | 2,000 |
| Junak | Sinj | Gradski stadion | 3,096 |
| Kamen Ivanbegovina | Ivanbegovina | Igralište NK Kamena | 1,000 |
| Mosor | Split | Stadion u Pricviću | 3,000 |
| Neretva | Metković | Igralište iza Vage | 2,000 |
| Neretvanac | Opuzen | Podvornica | 2,500 |
| Omiš | Omiš | Stadion Anđelko Marušić-Ferata | 5,000 |
| OŠK Otok | Otok | Igralište NK Otok | 450 |
| Primorac B/M | Biograd na Moru | Gradski stadion Kazimir i Silvio | 1,500 |
| Primorac 1929 | Stobreč | Igralište u Blatu | 3,600 |
| Solin | Solin | Stadion pokraj Jadra | 5,000 |
| Val | Kaštel Stari | Vukovar | 2,000 |
| Zagora | Unešić | Borovište | 3,000 |
| Zmaj Makarska | Makarska | Gradski sportski centar | 5,000 |
League table
Results
West
Stadia and locations
| Team | Home city | Stadium | Capacity |
| Dubrava | Zagreb | ŠRC Grana-Klaka | 2,000 |
| Dugo Selo | Dugo Selo | Gradski stadion | 2,000 |
| HAŠK | Zagreb | ŠRC Pešćenica | 3,000 |
| Krk | Krk | SRC Josip Uravić Pepi | 500 |
| Maksimir | Zagreb | Oboj | 247 |
| Novigrad | Novigrad | Lako | 2,300 |
| Opatija | Opatija | Stadion NK Opatije | 2,000 |
| Rijeka II | Rijeka | Stadion Rujevica | 5,786 |
| Samobor | Samobor | SC NK Samobor | 5,000 |
| Stupnik | Gornji Stupnik | SRC Stupnik | 1,000 |
| Špansko | Zagreb | Stadion NK Špansko | 1,000 |
| Trnje | Zagreb | Stadion Trnja | 1,000 |
| Vinogradar | Jastrebarsko | Mladina | 2,000 |
| Vrapče | Zagreb | Igralište Vrapča | 1,000 |
| Vrbovec | Vrbovec | Gradski stadion kraj Sajmišta | 4,000 |
| Zagorec | Krapina | ŠRC Podgora | 2,000 |