| ASEAN Basketball League | |
| Season: | 2009–10 |
| Champions: | Philippine Patriots |
| Runners Up: | Satria Muda |
| Semifinalists: |  Singapore SlingersKuala Lumpur Dragons |
| Teams: | 6 |
| Games: | 45 (regular season) 8 (playoffs) |
| Dates: | 10 October 2009 – 24 January 2010 (regular season) 31 January 2010 – 21 February 2010 (playoffs) |
| Award4: | MVP |
| Award4 Winner: | Attaporn Lertmalaiporn |
| Award5: | Best Import |
| Award5 Winner: | Jason Dixon |
| Award6: | Finals MVP |
| Award6 Winner: | Warren Ybañez |
| Biggest Home Win: | Satria Muda BritAma 97–62 Brunei Barracudas (8 November 2009) |
| Biggest Away Win: | Kuala Lumpur Dragons 76–94 Brunei Barracudas (14 October 2009) |
| Highest Scoring: | Brunei Barracudas 89–95 Singapore Slingers (20 January 2010) |
| Winning Streak: | 6 games Philippine Patriots |
| Losing Streak: | 6 games Thailand Tigers |
| Nextseason: | 2010–11 |
The 2009–10 ASEAN Basketball League season was the first season of competition since its establishment. A total of six teams competed in the league. The regular season began on 10 October 2009 and ended on 24 January 2010, which was followed by a post-season involving the top four teams.
The Philippine Patriots of Philippines had the #1 seed at the conclusion of the regular season.
| Team | City/Area | Arena / Capacity | Founded | Joined | Team Owners | Head Coach |
|---|---|---|---|---|---|---|
| Kuala Lumpur Dragons | Kuala Lumpur, Malaysia | MABA Stadium (2,500) Putra Stadium (16,000) | 2009 | 2009 | Datuk Wira Dani Daim & Westport and Partners |  Goh Cheng Huat |
| Philippine Patriots | Metro Manila, Philippines | Filoil Flying V Arena (5,000) Ynares Sports Arena (3,000) | 2009 | 2009 | Mikee Romero and Tony Boy Cojuangco |  Louie Alas |
| Satria Muda | Jakarta, Indonesia | The BritAma Arena (4,000) | 1994 | 2009 | Erick Thohir and Mahaka Foundation |  Fictor Roring |
| Singapore Slingers | Singapore | Singapore Indoor Stadium (8,126) | 2006 | 2009 | Basketball Enterprises Pte. Ltd. |  Frank Arsego |
| Thailand Tigers | Bangkok, Thailand | Nimibutr National Stadium (6,051) | 2009 | 2009 | Wim Reijnen/Entertainment Asia and partners |  Soontornpong Mawintorn |
| Brunei Barracudas | Bandar Seri Begawan, Brunei Darussalam | Brunei Indoor Stadium (5,500) | 2009 | 2009 | Nadzaty Azma Azeez and Everwide SC | Geraldo Ramos |
See main article: 2010 ABL playoffs.
The semifinals is a best-of-three series, with the higher seeded team hosting game 1, and 3 if necessary.|}
The finals is a best-of-five series, with the higher seeded team hosting games 1 and 2, and 5 if necessary.|}
Last update: End of Round 11
| Category | Player | Team | Stat | |
|---|---|---|---|---|
| Points per game | Reggie Larry | 21.0 | ||
| Rebounds per game | 15.3 | |||
| Assists per game | Reggie Larry | 4.0 | ||
| Steals per game | Reggie Larry | 2.0 | ||
| Blocks per game | 5.0 |
Last update: End of Round 11
| Category | Player | Team | Stat | |
|---|---|---|---|---|
| Alex Hartman | 33 | |||
| 22 | ||||
| Jamal Brown | 10 | |||
| Reggie Larry | 6 | |||
| 7 | ||||
| Field goals made | Reggie Larry Rudy Lingganay Michael LeBlanc Chaz Briggs | 11 | ||
| Three-point field goals made | Alex Hartman | 6 | ||
| Free throws made | Alex Hartman | 12 |
See 2009–2010 ABL team rosters.