Joseph Kagan, Baron Kagan (6 June 1915 – 17 January 1995) was a Lithuanian-British industrialist and the founder of Kagan Textiles, of Elland, which made raincoats from the waterproof Gannex fabric he had invented.
Gannex raincoats were worn by Prime Minister Harold Wilson, a friend of his.
Kagan was sent to prison for ten months in 1980 for stealing from his own companies.