The Belling-Lee connector (also type 9,52, but largely only in the context of its specification, IEC 61169, Part 2: Radio-frequency coaxial connector of type 9,52)[1] is commonly used in Europe, parts of Southeast Asia, and Australia, to connect coaxial cables with each other and with terrestrial VHF/UHF roof antennas, antenna signal amplifiers, CATV distribution equipment, TV sets, and FM and DAB radio receivers.

It was invented at Belling & Lee Ltd in Enfield, United Kingdom[a] around 1922 at the time of the first BBC broadcasts.

Belling Lee Limited still exists as a wholly owned subsidiary of Dialight, since 1992.

[2] In type 9,52, the 9,52, in French SI style, refers to the 9.525-millimetre (3⁄8-inch) male external and female internal connector body diameter.

[1] There is also a miniature Belling-Lee connector which was used for internal connections inside some equipment (including BBC RC5/3 Band II receiver and the STC AF101 Radio Telephone).