Karnaphuli (Bengali: কর্ণফুলী) is an Upazila of Chattogram District in Chattogram Division, Bangladesh. Administration Karnaphuli Thana was established on 27 May 2000. Karnaphuli, a police station area under Chattogram's Patiya, has been upgraded to an Upazila.

As of the 2011 Bangladesh census, Karnaphuli upazila had 29,975 households and a population of 162,110. 24,015 (14.81%) were under 7 years of age. Karnaphuli had an average literacy rate of 52.07%, compared to the national average of 51.8%, and a sex ratio of 936 females per 1000 males. The entire population was rural.

• Karnaphuli

1. Char Patharghata
2. Shikalbaha
3. Char Lakhya
4. Juldha
5. Bara Uthan

• Upazilas of Bangladesh
• Districts of Bangladesh
• Divisions of Bangladesh