Khwaja Nizamuddin Bhuiyan (Bengali: খাজা নিজামউদ্দিন ভূইয়া) was a Bangladeshi officer in the Gonobahini, who was killed fighting in the Bangladesh Liberation war.

He fought a number of guerrilla battles in Sylhet district with the Pakistan Army.

[6][8] Bhuyan had a direct confrontation with the Pakistan Army in Atgram Road, Kanaighat on 4 September 1971.

Shaheed Khwaja Nizamuddin Bir Uttam Sarak in Comilla was named after him.

[6][9] Bir Uttam Shaheed Khwaja Nizamuddin Bhuyan road was named after him in Dhaka.