Solomon David Sassoon (14 August 1915 – 27 May 1985) was an educator, Rabbi, philanthropist, fundraiser, and collector of Jewish manuscripts.
Sassoon made original contributions to linguistic analysis, philosophy, physiology and Biblical scholarship.
In 1953 and again in 1964, he declined requests to put his name forward as a candidate for the position of Sephardi Chief Rabbi of Israel.
Solomon David Sassoon built a library in Letchworth, England, to house his father's collections of Jewish manuscripts and incunabula.
Some of these holdings were later auctioned by Sotheby's of London in Zurich and in New York, between 1975 and 1994, in order to satisfy the Sassoon estate's British tax obligations.