The Qom River or Qom Roud ({{lang-fa|رودخانه قمرود}}) receives its water from the Zagros Mountain and the Namak Lake. It is a large river in Iran. The Qom flows through the city of Qom, and together with the Qareh Su it gains a length of approximately {{convert|400|km|abbr=on}}. The water level strongly fluctuates between 312 m³/s and only 4 m³/s. This is partially the effect of taking water for irrigation.
{{coord|34|29|02|N|51|34|35|E|region:IR_type:waterbody_source:kolossus-dewiki|display=title}}{{Rivers of Iran}}{{Iran-river-stub}}