Revolutionary Student Unity (RSU) (Bengali: বিপ্লবী ছাত্র মৈত্রী), is a progressive left-wing student-mass organization in Bangladesh.

Ideologically Marxist-Leninist, it was founded on 6 December 1980 through the unification of National Students Movement (Bengali: জাতীয় ছাত্র আন্দোলন), East Bengal Students Union (Bengali: পূর্ব বাংলা ছাত্র ইউনিয়ন) and two centers of National Students Group (Bengali: জাতীয় ছাত্রদল) in the historic Bottola premises of University of Dhaka.

The highest body within RSU is the Central Council, which convenes every two years.

The organization has set its goal to establish a one-way science based democratic education system in Bangladesh.

It had a significant role during most of the recent progressive movements, notably in the 1990 mass uprising against the military rule of Hussein Muhammad Ershad and the anti-Razakar 2013 Shahbag protests.