The 2015-16 Czech 1. liga season was the 22nd season of the Czech 1. liga, the second level of ice hockey in the Czech Republic. 14 teams participated in the league.
HC Slavia Praha and HC Dukla Jihlava have won this season of the league, neither succeeded in the Extraliga qualification.
HC Sumperk was relegated to the Czech 2. liga after 5 years in the Czech 1. Liga. They have been replaced by HC Frýdek-Místek, who have been promoted from the 2. Liga.
Format
14 teams compete in the league, with the top 6 teams at the end of the regular season play qualifying for the playoffs. The teams that finish 7th through 10th play a play-in series (best-of-five) to determine who will join the top six into the playoff quarter-finals (best-of-seven). No final is played. Instead, two teams which win the semifinals are declared co-champions and both advance to the qualifying group against two worst placed teams at the end of the Extraliga regular season.
The four lowest ranked teams (11–14) after the regular season play in a play-out group (12 games, all regular-season matches are counted into the ranking). The worst team after 12 rounds is relegated to the Czech 2. Liga.
Regular season
| Pl. | GP | W | OTW | OTL | L | Goals | Pts | |
| 1. | Rytíři Kladno | 52 | 29 | 5 | 7 | 11 | 201:151 | 104 |
| 2. | HC Dukla Jihlava | 52 | 29 | 4 | 3 | 16 | 163:124 | 98 |
| 3. | ČEZ Motor České Budějovice | 52 | 28 | 6 | 1 | 17 | 185:142 | 97 |
| 4. | HC Slavia Praha | 52 | 24 | 8 | 6 | 14 | 172:135 | 94 |
| 5. | LHK Jestřábi Prostějov | 52 | 22 | 4 | 10 | 16 | 148:156 | 84 |
| 6. | HC ZUBR Přerov | 52 | 23 | 6 | 3 | 20 | 161:149 | 84 |
| 7. | AZ Havířov 2010 | 52 | 24 | 2 | 3 | 23 | 157:154 | 79 |
| 8. | HC Slovan Ústečtí Lvi | 52 | 21 | 3 | 6 | 22 | 176:178 | 75 |
| 9. | Sportovní Klub Kadaň | 52 | 18 | 6 | 5 | 23 | 146:159 | 71 |
| 10. | HC Stadion Litoměřice | 52 | 15 | 10 | 6 | 21 | 149:177 | 71 |
| 11. | SK Horacka Slavia Trebic | 52 | 17 | 6 | 7 | 22 | 129:147 | 70 |
| 12. | HC Benátky nad Jizerou | 52 | 16 | 5 | 3 | 28 | 129:144 | 61 |
| 13. | HC Most | 52 | 13 | 4 | 5 | 30 | 133:184 | 52 |
| 14. | Salith Šumperk | 52 | 11 | 5 | 9 | 27 | 132:181 | 52 |
Playoffs
| Round of 16 | Quarter-finals | Semi-finals | Final | |||||||||||
| Rytíři Kladno | ||||||||||||||
| Rytíři Kladno | 2 | |||||||||||||
| HC Slovan Ústečtí Lvi | 4 | |||||||||||||
| SK Kadaň | 1 | |||||||||||||
| HC Slovan Ústečtí Lvi | 3 | |||||||||||||
| HC Slovan Ústečtí Lvi | 1 | |||||||||||||
| HC Dukla Jihlava | 4 | |||||||||||||
| HC Dukla Jihlava | ||||||||||||||
| HC Dukla Jihlava | 4 | |||||||||||||
| AZ Havířov 2010 | 1 | |||||||||||||
| HC Stadion Litoměřice | 0 | |||||||||||||
| AZ Havířov 2010 | 3 | |||||||||||||
| not played | ||||||||||||||
| HC Slavia Praha | ||||||||||||||
| HC Slavia Praha | 4 | |||||||||||||
| LHK Jestřábi Prostějov | 0 | |||||||||||||
| LHK Jestřábi Prostějov | ||||||||||||||
| HC Slavia Praha | 4 | |||||||||||||
| ČEZ Motor České Budějovice | 0 | Third place | ||||||||||||
| ČEZ Motor České Budějovice | ||||||||||||||
| ČEZ Motor České Budějovice | 4 | not played | ||||||||||||
| HC ZUBR Přerov | 1 | |||||||||||||
| HC ZUBR Přerov | ||||||||||||||
2016-17 Extraliga qualification
| Pl. | GP | W | OTW | OTL | L | Goals | Pts | |
| 1. | HC Litvinov | 12 | 7 | 2 | 1 | 2 | 42:27 | 25 |
| 2. | HC Karlovy Vary | 12 | 6 | 1 | 0 | 5 | 42:34 | 20 |
| 3. | HC Slavia Praha | 12 | 3 | 3 | 2 | 4 | 34:36 | 17 |
| 3. | HC Dukla Jihlava | 12 | 2 | 1 | 2 | 7 | 25:23 | 10 |
HC Litvinov have qualified to the Extraliga for the 2016-17 season.
HC Karlovy Vary have qualified to the Extraliga for the 2016-17 season.
HC Slavia Praha failed to qualify for the 2016-17 Czech Extraliga season. They will resume playing in the Czech 1. Liga.
HC Dukla Jihlava failed to qualify for the 2016-17 Czech Extraliga season. They will resume playing in the Czech 1. Liga.
Play-out
| Pl. | GP | W | OTW | OTL | L | Goals | Pts | |
| 1. | SK Horacka Slavia Trebic | 58 | 17 | 6 | 8 | 27 | 137:172 | 71 |
| 2. | HC Benátky nad Jizerou | 58 | 18 | 6 | 4 | 30 | 144:159 | 70 |
| 3. | HC Most | 58 | 17 | 4 | 6 | 31 | 151:195 | 65 |
| 4. | Salith Šumperk | 58 | 14 | 7 | 9 | 28 | 156:195 | 65 |
Salith Šumperk was relegated.