Santhia (Bengali: সাঁথিয়া) is an upazila of Pabna District in the Division of Rajshahi, Bangladesh.

Santhia is located at 24°03′30″N 89°32′00″E / 24.0583°N 89.5333°E / 24.0583; 89.5333. It has 89,032 households and a total area of 331.55 km. Santhia has some forest-like areas with wild animals like foxes, mongooses, wild cats, etc. But these woods and animals are on the verge of extinction because of hunting and slash-and-burn.

According to the 2011 Bangladesh census, Santhia Upazila had 89,032 households and a population of 380,301. 88,808 (23.35%) were under 10 years of age. Santhia had a literacy rate (age 7 and over) of 43.88%, compared to the national average of 51.8%, and a sex ratio of 989 females per 1000 males. 38,704 (10.18%) lived in urban areas.

As of the 1991 Bangladesh census, Santhia has a population of 283,463. Males constitute 52.2% of the population, and females 47.8%. This Upazila's eighteen up population is 135,476.

Santhia Upazila is divided into Santhia Municipality and ten union parishads: Ataikola, Bhulbaria, Dhopadaha, Dhulauri, Gourigram, Karanja, Kashinathpur, Khatupara, Nagdemra, and Nandanpur. The union parishads are subdivided into 176 mauzas and 234 villages.

Santhia Municipality is subdivided into 9 wards and 27 mahallas.

Chairman: 01. Abdullah Al Mahmud Deloar

Vice Chairman: 01.Md Khokon

Woman Vice Chairman: 01. Selima Rahman Shila

Upazila Nirbahi Officer (UNO): Md. Abdur Razzaque Sarker [1] Dr. Md. Aminul Islam Nasim, Physician

Municipality:

Chairman: Mahbubul Alam Bacchu

Councillors: Md. Abdul Awoal Md. Saiful Alam Md. Shirajul Islam Md. Daud

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