Sonarpur Uttar Assembly constituency is a Legislative Assembly constituency of South 24 Parganas district in the Indian State of West Bengal.

As per order of the Delimitation Commission in respect of the Delimitation of constituencies in the West Bengal, Sonarpur Uttar Assembly constituency is composed of the following:[1] Sonarpur Uttar Assembly constituency is a part of No.

In 2006[13] Shyamal Naskar of CPI(M) won the Sonarpur Assembly constituency defeating his nearest rival Nirmal Chandra Mondal of AITC.

[9] Gangadhar Naskar of CPI(M) defeated Ramkanta Mondal of ICS in 1982[8] and Gourhari Sardar of INC in 1977.

[3] Khagendra Kumar Roy Choudhury of CPI won in 1962.