June
| Item title | Countries | Deadline |
|---|---|---|
| 2010 IBS/David Walter Composition Competition | United States | 01 June 2010 |
| Barlow Endowment for Music Composition | United States | 01 June 2010 |
| Carl von Ossietzky Composition Competition | Germany | 30 June 2010 |
| International Society of Bassists (ISB) Composition Competition | United Kingdom | 01 June 2010 |