Saints Thaddeus and Bartholomew Church of Tehran, (Armenian: Սուրբ Թադևոս-Բարդուղիմեոս եկեղեցի, Persian: کلیسای تادئوس و بارتوقیمئوس مقدس), is an Armenian Apostolic church in Tehran, Iran.

[1] The church building occupies an area of about 220 m², with a small courtyard in combination with a courtyard and rooms totally in an area of 350 m², imitating small churches of New Julfa.

In late 18th and early 19th century, the church was the first and only cemetery of Christians in Tehran.

[2] In 1970, original frescoes were discovered underneath the plaster on the interior walls.

The church contains also a memorial stone for the killed Russian ambassador Alexander Sergeyevich Griboyedov (+ 1829) whose body was kept here until the transfer to his final grave in Tbilisi.