| Team | Qualifying method | App | Last App |
| Group stage direct entrants (Groups A–D) | |||
| Naft Al-Wasat | 2014–15 Iraqi Premier League champions | 1st | none |
| Al-Quwa Al-Jawiya | 2014–15 Iraqi Premier League runners-up | 1st | none |
| Al-Wehdat | 2014–15 Jordan League champions | 9th | 2015 |
| Al-Faisaly | 2014–15 Jordan FA Cup winners | 8th | 2013 |
| Al-Oruba | 2014–15 Oman Professional Leaguechampions 2014–15 Sultan Qaboos Cup winners |
4th | 2012 |
| Fanja | 2014–15 Oman Professional Leaguerunners-up | 4th | 2015 |
| Al-Muharraq | 2014–15 Bahrain First Division Leaguechampions | 5th | 2009 |
| Al-Ahed | 2014–15 Lebanese Premier Leaguechampions | 7th | 2012 |
| Al-Jaish | 2014–15 Syrian Premier Leaguechampions | 6th | 2015 |
| Shabab Al-Dhahiriya | 2014–15 West Bank Premier Leaguechampions | 2nd | 2014 |
| Istiklol | 2015 Tajik League champions 2015 Tajik Cup winners |
2nd | 2015 |
| Altyn Asyr | 2015 Ýokary Liga champions | 2nd | 2015 |
| Entering in qualifying play-off (play-off round) | |||
| Al-Hidd | 2015 Bahraini King's Cup winners | 3rd | 2015 |
| Tripoli | 2014–15 Lebanese FA Cup winners | 2nd | 2004 |
| Al-Wahda | 2015 Syrian Cup winners | 5th | 2015 |
| Ahli Al-Khaleel | 2014–15 Palestine Cup winners | 1st | none |
| Khujand | 2015 Tajik League runners-up | 1st | none |
| 2015 Turkmenistan Cup winners | |||
| Alay Osh | 2015 Kyrgyzstan League champions | 2nd | 2014 |
| Team | Qualifying method | App | Last App |
| Group stage direct entrants (Groups E–H) | |||
| Kitchee | 2014–15 Hong Kong Premier Leaguechampions | 6th | 2015 |
| South China | 2014–15 Hong Kong Season Play-offwinners | 7th | 2015 |
| Yangon United | 2015 Myanmar National League champions | 4th | 2014 |
| Ayeyawady United | 2015 General Aung San Shield winners | 4th | 2015 |
| Johor Darul Ta'zim | 2015 Malaysia Super League champions | 3rd | 2015 |
| Selangor | 2015 Malaysia Super League runners-up | 5th | 2014 |
| Mohun Bagan | 2014–15 I-League champions | 3rd | 2009 |
| Bengaluru FC | 2014–15 Indian Federation Cup winners | 2nd | 2015 |
| Tampines Rovers | 2015 S.League runners-up | 8th | 2014 |
| Balestier Khalsa | 2015 S.League 4th place | 2nd | 2015 |
| New Radiant | 2015 Dhivehi Premier League champions | 8th | 2015 |
| Maziya | 2015 Maldives President's Cup winners | 4th | 2015 |
| Ceres | 2015 UFL Division 1 champions | 2nd | 2015 |
| Kaya | 2015 UFL Cup winners | 1st | none |
| Lao Toyota FC | 2015 Lao Premier League champions | 2nd | 2015 |
| Team | Qualifying method | App | Last App |
| Entering in qualifying round (teams not split into zones for qualifying round) |
|||
| Alga | 2014 Kyrgyzstan League 3rd place | 1st | none |
| Sheikh Jamal Dhanmondi | 2013–14 Bangladesh Football Premier League champions | 1st | none |
| K-Electric | 2014–15 Pakistan Premier League champions | 1st | none |
| Benfica de Macau | 2015 Campeonato da 1ª Divisão do Futebol champions | 1st | none |
| Khoromkhon | 2014 Mongolia Premier League champions | 1st | none |
| Druk United | 2014 Bhutan National League champions | 1st | none |
| Team | Qualifying Method | App | Last App |
| Group Stage Drect Entrants (Groups A–D) | |||
| Al-Shorta | 2013–14 Iraqi Premier League champions | 2nd | 2014 |
| Erbil | 2013–14 Iraqi Premier League runners-up | 6th | 2014 |
| Al-Qadsia | 2013–14 Kuwaiti Premier League champions | 6th | 2014 |
| Al-Kuwait | 2013–14 Kuwait Emir Cup winners | 7th | 2014 |
| Al-Wehdat | 2013–14 Jordan League champions 2013–14 Jordan FA Cup winners |
8th | 2012 |
| Al-Jazeera | 2013–14 Jordan League 3rd place | 1st | none |
| Al-Nahda | 2013–14 Oman Professional League champions | 3rd | 2010 |
| Riffa | 2013–14 Bahrain First Division League champions | 3rd | 2014 |
| Al-Nejmeh | 2013–14 Lebanese Premier League champions | 7th | 2014 |
| Al-Wahda | 2013–14 Syrian Premier League champions | 4th | 2014 |
| Taraji Wadi Al-Nes | 2013–14 West Bank Premier League champions | 1st | none |
| Istiklol | 2014 Tajik League champions 2014 Tajik Cup winners |
1st | none |
| Qualifying Play-off Participants | |||
| Entering in Play-off Round | |||
| Fanja | 2013–14 Sultan Qaboos Cup winners | 3rd | 2014 |
| Al-Hidd | 2013–14 Bahrain First Division League 3rd place | 2nd | 2014 |
| Salam Zgharta | 2013–14 Lebanese FA Cup winners | 1st | none |
| Al-Jaish | 2014 Syrian Cup winners | 5th | 2014 |
| Entering in Preliminary Round | |||
| Hilal Al-Quds | 2013–14 Palestine Cup winners | 1st | none |
| Khayr Vahdat | 2014 Tajik League runners-up | 1st | none |
| Altyn Asyr | 2014 Ýokary Liga champions | 1st | none |
| Ahal | 2014 Turkmenistan Cup winners | 1st | none |
| Dordoi | 2014 Kyrgyzstan League champions | 1st | none |
| Al-Saqr | 2013–14 Yemeni League champions | 3rd | 2011 |
| Sheikh Russel | 2014 AFC President's Cup group stage winners | 1st | none |
| Manang Marshyangdi Club | 2014 AFC President's Cup group stage winners | 1st | none |
| Team | Qualifying Method | App | Last App |
| Group Stage Direct Entrants (Groups E–H) | |||
| Persib Bandung | 2014 Indonesia Super League champions | 1st | none |
| Persipura Jayapura | 2014 Indonesia Super League runners-up | 3rd | 2014 |
| Kitchee | 2013–14 Hong Kong First Division League champions | 5th | 2014 |
| South China | 2013–14 Hong Kong Season Play-off winners | 6th | 2014 |
| Yadanarbon | 2014 Myanmar National League champions | 1st | none |
| Ayeyawady United | 2014 MFF Cup winners | 3rd | 2013 |
| Johor Darul Ta'zim | 2014 Malaysia Super League champions | 2nd | 2009 |
| Pahang | 2014 Malaysia FA Cup winners | 3rd | 2007 |
| Bengaluru | 2013–14 I-League champions | 1st | none |
| East Bengal | 2013–14 I-League runners-up | 8th | 2013 |
| Warriors | 2014 S.League champions | 4th | 2013 |
| Balestier Khalsa | 2014 Singapore Cup winners | 1st | none |
| New Radiant | 2014 Dhivehi League champions | 7th | 2014 |
| Global | 2014 United Football League Division 1 champions | 1st | none |
| Lao Toyota FC | 2014 Lao League runners-up | 1st | none |
| Qualifying Play-off Participants | |||
| Entering in Play-off Round | |||
| Maziya | 2014 Maldives FA Cup winners | 3rd | 2014 |
| Ceres | 2013–14 PFF–Smart National Club Championship winners | 1st | none |