Koothappar is a neighbourhood of the city of Tiruchirappalli in Tamil Nadu, India. It is situated in the heart of the city.
Koothappar is located at . It lies close to Kaveri River and the famous Kallanai Dam (also known as the Grand Anicut) is just 5 km from here.
India census, Koothappar had a population of 17,061. Males constitute 50% of the population and females 50%. Koothappar has an average literacy rate of 87%, higher than the national average of 59.5%. Male literacy is 91%, and female literacy is 84%. In Koothappar, 7% of the population is under 6 years of age.
Regular bus service connects the town with the intra-city terminal Chathiram Bus Station, Tiruchirappalli (also called as Main Guard Gate). The nearest railway station is Thiruverumbur and the nearby airport is Tiruchirapalli International Airport.