Sir Terence Orby Conran CH RDI FCSD (4 October 1931 – 12 September 2020) was a British designer, restaurateur, retailer and writer. He founded the household retailer Habitat in 1964, and the Design Museum in Shad Thames, London in 1989. The British designer Thomas Heatherwick said that Conran "moved Britain forward to make it an influence around the world."

Edward Barber, from the British design team Barber & Osgerby, described Conran as "the most passionate man in Britain when it comes to design, and his central idea has always been 'Design is there to improve your life.'" The satirist Craig Brown once joked that before Conran "there were no chairs and no France."

Conran was born in Kingston upon Thames, Surrey, the son of Christina Mabel Joan Conran (née Halstead, d.1968) and South African-born Gerard Rupert Conran (d.1986), a businessman who owned a rubber importation company in East London. Conran was educated at Highfield School in Liphook, Bryanston School in Dorset and the Central School of Art and Design (now incorporated into Central St Martin's, a part of the University of the Arts, London), where he studied textiles and other materials.

Conran's first professional work came when he worked in the Festival of Britain (1951) on the main South Bank site. He left college to take up a job with Dennis Lennon's architectural company, which had been commissioned to make a 1/4-scale interior of a Princess Flying Boat. Shortly after the Festival ended, Conran was laid off and started focussing on furniture and fabric designs for David Whitehead. He worked with his friend Raymond Elston, who had some knowledge of welding and making clothes.

In May 1953, Conran, his friend Eduardo Paolozzi and Elston were invited to take part in the Third Weekend Exhibition of abstract art, organised by Adrian Heath in his studio at 22 Fitzroy Square, London. Conran showed some furniture: "a low table, a stool, a dining table and an upright chair - all in his familiar spindly-leg style"; Paolozzi some collages, and Elston some mobiles.

Conran started his own design practice in 1956 with the Summa furniture range and designing a shop for Mary Quant.

In 1964, he opened the first Habitat shop in Chelsea, London with his third wife Caroline Herbert, focusing on housewares and furniture in contemporary designs. Habitat grew into a large chain, the first retailer to bring such designs to a mass audience.

In the mid-1980s, Conran expanded Habitat into the Storehouse plc group of companies that included BhS, Mothercare and Heal's but in 1990 he lost control of the company.