| 8th South American Basketball Championship | |
|---|---|
| Tournament details | |
| Host country | Uruguay |
| Dates | 20-28 January |
| Teams | 6 |
| Venue(s) | 1 (in 1 host city) |
| Final positions | |
| Champions |  Uruguay (3rd title) |
The 1940 South American Basketball Championship was the 8th edition of this tournament. It was held in Montevideo, Uruguay and won by the host, Uruguay national basketball team. A record 6 teams competed, including Paraguay in their first appearance, despite the World War that was currently under way.
Each team played the other five teams once, for a total of five games played by each team and 15 overall in the tournament.
| Rank | Team | Pts | W | L | PF | PA | Diff |
|---|---|---|---|---|---|---|---|
| 1 | Uruguay | 10 | 5 | 0 | 192 | 101 | +91 |
| 2 |  Argentina | 9 | 4 | 1 | 177 | 106 | +71 |
| 3 |  Brazil | 8 | 3 | 2 | 135 | 156 | -21 |
| 4 |  Chile | 7 | 2 | 3 | 166 | 155 | +11 |
| 5 |  Peru | 6 | 1 | 4 | 149 | 146 | +3 |
| 6 |  Paraguay | 5 | 0 | 5 | 83 | 238 | -155 |
| Uruguay | 25 - 23 | Argentina |
| Uruguay | 38 - 15 | Brazil |
| Uruguay | 43 - 26 | Chile |
| Uruguay | 25 - 24 | Peru |
| Uruguay | 61 - 13 | Paraguay |
| Argentina | 46 - 33 | Brazil |
| Argentina | 18 - 17 | Chile |
| Argentina | 40 - 26 | Peru |
| Argentina | 50 - 5 | Paraguay |
| Brazil | 36 - 31 | Chile |
| Brazil | 27 - 21 | Peru |
| Brazil | 24 - 20 | Paraguay |
| Chile | 35 - 32 | Peru |
| Chile | 57 - 26 | Paraguay |
| Peru | 46 - 19 | Paraguay |