Rosemary Sayigh (née: Boxer; born 1927) is a British-born journalist and scholar of Middle Eastern history. She is known for her works on the Palestinian people, particularly those forcibly displaced to Lebanon as a result of the Nakba.

Sayigh was born on 15 March 1927 in the United Kingdom as Rosemary Boxer. She is the elder sister of Mark Boxer, a British journalist. Sayigh met her future husband, Yusif Sayigh, while she was working in Baghdad, Iraq as a teacher. The couple married at the National Evangelical Church in Beirut, Lebanon on 7 October 1953. The couple had four children, including scholar Yezid Sayigh.

During the 2006 Lebanon War, Sayigh evacuated from her home in Beirut to stay with her daughter in Cyprus.

Sayigh graduated from the University of Oxford with a Bachelor of Arts in English Language and Literature in 1948.

She began her MA in sociology and anthropology from the American University of Beirut in 1970. Sayigh's masters' thesis was about the experience of Palestinians displaced to Lebanon, based on research and interviews undertaken at refugee camps in or near Beirut. The thesis was accepted in 1976 despite resistance from her thesis advisor, thanks to intervention from a Palestinian history professor at the University.

Sayigh received a PhD in social anthropology from the University of Hull in 1994.

After graduating from the University of Oxford in 1948, Sayigh moved to Italy, first working as an au pair and then as an assistant at a British Institute Library. On her return to London a year later, she struggled to find employment, eventually getting a position at the advertising agency J. Walter Thompson.

In 1952, Sayigh's friend Desmond Stewart found her a teaching job at Queen Aliya College in Baghdad, Iraq. Stewart was a classical scholar teaching in Baghdad at the College of Arts and Sciences at the same time. Sayigh taught at Queen Aliya College for two years, overlapping on the faculty with Palestinian novelist and painter Jabra Ibrahim Jabra.