Wikipedia
Hashmi is a surname, referring descent from the Banu Hashim clan of Quraish with a unique maternal bloodline of Israelite ancestry through Salma bint Amr of Banu Najjar. This makes Banu Hashim both an Ishmaelites and Israelites tribe. The Islamic Prophet, Muhammad was a member of this Arab tribe; his great-grandfather was Hashim ibn Abd Manaf, for whom the tribe is named. Members of this clan are referred to as Hashemites. It can also be transliterated as (Al) Hashemi and (Al) Hashimi , Hashemites , Hashemites (disambiguation).
Hashmi surname is used by Syed family of Pakistan , Saudi Arabia, India , Iran , Jordan , Iraq and Syria etc. And both Shia and Sunni write this surname.
Examples of people with the surname: Dr Ghulam Abbas Hashmi (PhD Poultry Science, M Sc (Hons) Poultry Science, MSc (Hons) Animal Breeding and Genetics, Master in Islamic Studies Dr Ghulam Abbas Hashmi is research scholar of Pakistan. He has expertise in animal breeding and Genetics, Animal nutrition and Avian Sciences. He is interested in using molecular genetics techniques for dissection of genetic diversity in farm animals especially in poultry birds. His concern is planning of integrated/bio-farming involving biological and physical sciences for sustainable energy utilization.