Kathmandu 3 is one of 10 parliamentary constituencies of Kathmandu District in Nepal.

This constituency came into existence on the Constituency Delimitation Commission (CDC) report submitted on 31 August 2017.

[1] Kathmandu 3 parliamentary constituency consists of Gokarneshwar Municipality, wards 1, 2 and 3 of Kageshwari-Manohara Municipality and ward 6 of Kathmandu Metropolitan City.

It encompasses the following Bagmati Province Provincial Assembly segment