June
- 1 and 8 June: Egypt, Shura Council
- 6 June: Slovenia, Border dispute agreement referendum
- 9 June: Netherlands, Parliament
- 12 June: Slovakia, Parliament
- 13 June: Belgium, Parliament
- 19 June: Nauru, Parliament
- 20 June: Colombia, President (2nd round)
- 20 June: Poland, President (1st round)
- 26 June: Somaliland, President
- 27 June: Guinea, President (1st round)
- 27 June: Kyrgyzstan, Constitutional referendum
- 28 June: Burundi, President
- 29 June: Hungary, President (indirect)
- 30 June: Germany, President (indirect)
Read more about this topic: National Electoral Calendar 2010