Hugo Gabriel Gryn (pronounced green) (25 June 1930 – 18 August 1996) was a British Reform rabbi, a national broadcaster and a leading voice in interfaith dialogue.

Hugo Gryn was born into a prosperous Jewish family in the market town of Berehovo in Carpathian Ruthenia, which was then in Czechoslovakia and is now in Ukraine.

He won a scholarship to study Mathematics at King's College, Cambridge, and after graduation volunteered to serve in the Israeli Army during the 1947–1949 Palestine war.

[2] Upon receiving his ordination, Gryn was sent to Bombay by the World Union for Progressive Judaism, which had sponsored his studies, and following a spell working for the Union and for the American Jewish Joint Distribution Committee in New York he returned to Britain in 1964, where he served in one of the largest congregations in Europe, the West London Synagogue, initially as assistant rabbi and later as senior rabbi, for 32 years.

[3] After his death, Naomi Gryn edited his autobiography, also called Chasing Shadows,[4] which deals movingly with his experiences as a Holocaust survivor.