KarajHassan Dioband, Hamid Kazemi and Reza Zanganeh were executed Sunday, the judiciary said.
The UN rights office counted at least 27 executions linked to the January protests by August.
The judiciary said the Supreme Court upheld convictions for working for Israel and the US through Molotov and grenade attacks.
Foreign-based rights groups put the January death toll above the authorities’ 3,000 and say forces fired on protesters.
Iran executed at least 2,159 people last year, Amnesty said, and executions have risen since February’s strikes.
How each outlet framed it
drawn from 40+ reports worldwide
- BBC leans critical
- places the executions in the context of rising execution numbers since US-Israeli strikes and BBC accounts of security forces firing on protesters
- The New Arab
- relays the judiciary's Mizan account of the convictions, with other defendants receiving 5-10 year sentences
Sources: BBC, The New Arab