Tuesday's latest death sentence was against Javad Rouhi, a man described by the judiciary website as a "leader of rioters," which is how Iran describes its protesters. He was faced with a long list of charges, including "corruption on earth."
The UN condemned the Iran's deadly crackdown directed at protesters, which were ignited by the death of 22-year-old Jina Mahsa Amini.
UN spokesman Jeremy Laurence cited human rights chief Volker Turk as saying that the rise in deaths, including among children, and the tougher security response "underline the critical situation in the country."
Protests in Iran enter a fifth week after 22-year-old Jina Mahsa Amini died in police custody. She had been detained by the so-called morality police for allegedly wearing her headscarf too loosely.