Md. Mostafizur Rahman Fizu (died 2006) was a Bangladeshi politician from Dinajpur belonging to Bangladesh Awami League. He was a member of the Jatiya Sangsad.
Fizu was a cofounder of Swapnapuri which was established in 1989. He was elected as a member of the Jatiya Sangsad from Dinajpur-6 in the June 1996 Bangladeshi general election. His son Shibli Sadique is the MP of this constituency as of 2019.
Fizu died in 2006.