Kliot Boris (4 April 1923, Riga — 11 June 2007, New York) — ghetto survivor, entrepreneur, and philanthropist.

Boris Kliot grew up in Riga. With the beginning of the Nazi occupation, he was imprisoned in the Riga Ghetto, where his parents and four sisters perished. He was later interned in four concentration camps and was liberated in May 1945 in Magdeburg, Germany.

After liberation, Kliot served as an interpreter in the American Army and later settled in Paris, where his business acumen and appreciation for fashion began to take shape. In 1948, he emigrated to the United States. In New York, he and several partners founded Riviera, a company importing costume jewellery and accessories — such as hairpins, clips, and sunglasses — from Europe to the U.S. Riviera soon became the main supplier of sunglasses in the United States.

In the late 1990s, Kliot sold the company, continuing to serve as a consultant to its new owners. He was an active member of the Jewish Student League (JSL) and a major philanthropist supporting Jewish organisations and initiatives in the United States, Israel, and Latvia.

His donations significantly contributed to the construction of the Rumbula Memorial and the establishment of the Kliot Neurosurgical Centre at the Ichilov Hospital in Tel Aviv. He was a major benefactor of the United Jewish Appeal (UJA) in New York.

For over fifteen years, Kliot visited Riga annually, personally donating substantial sums to the Council of Jewish Communities of Latvia, the Jewish School, the Bikur Holim Hospital, the Lubavitch (Chabad) movement, and for the support of surviving former ghetto inmates. He also funded the reissue in Germany of M. Kaufmann’s book The Destruction of the Jews of Latvia and its translation into English.

He was the recipient of numerous awards from the UJA, Chabad-Lubavitch, and other Jewish organisations.