| Prevseason: | 2008–09 |
| Nextseason: | 2010–11 |
| G4S Korvpalli Meistriliiga1 | |
| Extra Information: | 1 Sponsored league name, referring to G4S. |
| Season: | 2009–10 |
| Champions: | TÜ/Rock 25th title |
| Runners Up: | Rakvere Tarvas |
| Third Place: | Tallinna Kalev/Cramo |
| Fourth Place: | TTÜ |
| Teams: | 8 |
| Duration: | 13 October 2009 – 14 May 2010 |
| Top Seed: | TÜ/Rock |
| Finals Mvp: |  Janar Talts |
| Ppg: | 22.41 |
| Rpg: | 10.96 |
| Apg: | 4.51 |
The 2009–10 G4S Korvpalli Meistriliiga was the 85th season of the Estonian basketball league and the first under the title sponsorship of G4S. Tallinna Kalev/Cramo came into the season as defending champions of the 2008–09 KML season.
The season started on 13 October 2009 and concluded on 14 May 2010 with TÜ/Rock defeating Rakvere Tarvas 4 games to 2 in the 2015 KML Finals to win their 25th Estonian League title.[1]
| Team | Location | Arena | Capacity | Head coach |
|---|---|---|---|---|
| Kuremaa/Tartu | Põltsamaa | Põltsamaa Felixhall | Priit Paama | |
| Pärnu | Pärnu | Pärnu Sports Hall | 2,000 | Rait Käbin |
| Rakvere Tarvas | Rakvere | Rakvere Sports Hall | 3,000 | Andres Sõber |
| Tallinna Kalev | Tallinn | Kalev Sports Hall | 6,950 | Kalle Klandorf |
| Tallinna Kalev/Cramo | Tallinn | Saku Arena | 7,500 | Alar Varrak Nenad Vučinić |
| TTÜ | Tallinn | TTÜ Sports Hall | 2,000 | Aivar Kuusmaa |
| TÜ/Rock | Tartu | University of Tartu Sports Hall | 4,000 | Indrek Visnapuu |
| Valga/CKE Inkasso | Valga | Valga Sports Hall | 2,000 |  Augenijus Vaškys |
| width=20 | ! | width=200 | Team ! | width=30 | ! | width=30 | ! | width=30 | ! | width=30 | ! | width=30 | ! | width=200 | Qualification |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | TÜ/Rock | 28 | 23 | 5 | 51 | Qualification to Playoffs | |||||||||
| 2 | 28 | 22 | 6 | 50 | |||||||||||
| 3 | TTÜ | 28 | 20 | 8 | 48 | ||||||||||
| 4 | Tallinna Kalev/Cramo | 28 | 19 | 9 | 47 | ||||||||||
| 5 | Valga/CKE Inkasso | 28 | 11 | 17 | 39 | ||||||||||
| 6 | 28 | 9 | 19 | 37 | |||||||||||
| 7 | 28 | 7 | 21 | 35 | |||||||||||
| 8 | 28 | 1 | 27 | 29 |
The playoffs began on 28 March 2010 and ended on 14 May 2010. The tournament concluded with TÜ/Rock defeating Rakvere Tarvas 4 games to 2 in the 2010 KML Finals.
Players qualify to this category by having at least 50% games played.
| class="wikitable sortable" style="text-align: center;" | |||||||||
| Rank | width=180 | Player | width=150 | Team | Games | width=75 | Points | width=40 | PPG |
|---|---|---|---|---|---|---|---|---|---|
| 1 |  Charron Fisher | Tallinna Kalev/Cramo | 29 | 650 | 22.41 | ||||
| 2 | Kuremaa/Tartu | 26 | 498 | 19.15 | |||||
| 3 | Tallinna Kalev | 26 | 430 | 16.54 | |||||
| 4 | Tallinna Kalev | 29 | 476 | 16.41 | |||||
| 5 | Rakvere Tarvas | 37 | 589 | 15.92 |
| Rank | width=180 | Player | width=150 | Team | Games | width=75 | Rebounds | width=40 | RPG |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Brett McGee | Kuremaa/Tartu | 26 | 285 | 10.96 | ||||
| 2 | Tallinna Kalev | 26 | 240 | 9.23 | |||||
| 3 | TÜ/Rock | 36 | 317 | 8.81 | |||||
| 4 | Tallinna Kalev/Cramo | 29 | 244 | 8.41 | |||||
| 5 | Valga/CKE Inkasso | 15 | 120 | 8.00 |
| Rank | width=180 | Player | width=150 | Team | Games | width=75 | Assists | width=40 | APG |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Valmo Kriisa | Rakvere Tarvas | 37 | 167 | 4.51 | ||||
| 2 | Tallinna Kalev/Cramo | 26 | 96 | 3.69 | |||||
| 3 | Valga/CKE Inkasso | 29 | 93 | 3.21 | |||||
| 4 | Kuremaa/Tartu | 25 | 66 | 2.64 | |||||
| 5 | Rakvere Tarvas | 36 | 94 | 2.61 |
| width=180 | Player | width=150 | Team | |
|---|---|---|---|---|
| PG | Valmo Kriisa | Rakvere Tarvas | ||
| SG | Rain Veideman | Rakvere Tarvas | ||
| SF | Tallinna Kalev/Cramo | |||
| PF | Janar Talts | TÜ/Rock | ||
| C | Scott Morrison | TÜ/Rock |