Yusif Haydar oglu Mammadaliyev (Azerbaijani: Yusif Heyd?r oglu M?mm?d?liyev;December 31, 1905 – December 15, 1961) was an Azerbaijani chemist.
He was a Doctor of Chemistry, academician of the National Academy of Sciences of the Azerbaijan SSR, and was the president of the National Academy of Sciences of the Azerbaijan SSR.