They include asset freezes and travel bans against 82 people and one entity, as well as a prohibition of exports of equipment that could be used for internal repression and monitoring telecommunications, the bloc said in a statement.
The UN said in March that Iran had arrested activists and political opponents in a clampdown on freedom of expression and continued to use torture to coerce confessions.
The EU revoked its broader set of economic and financial sanctions on Iran in 2016 after the nuclear deal was struck.
