Rajapur Union (Bengali: রাজাপুর ইউনিয়ন) is a union parishad situated at Mohammadpur Upazila, in Magura District, Khulna Division of Bangladesh.
[1] The union has an area of 16.05 square kilometres (6.20 sq mi) and as of 2001 had a population of 24,400.
[2] There are 11 villages and 10 mouzas in the union.