Although the Hertfordshire Rugby Football Union was formed in 1935 and there have been club sides based in the county since as the late 19th century, a senior representative side did not take part in the County Championships until as late as 1952.

[2] Over the years Hertfordshire has become an important member of the RFU and is currently one of the stronger sides in the men's County Championships.

They have reached several finals in the counties history, most recently in 2012 when they finished as winners after beating Lancashire 38–20 at Twickenham.

[3] Honours: There are currently 29 clubs affiliated with the Hertfordshire RFU, most of which have teams at both senior and junior level.

[4] The Hertfordshire RFU currently runs the following competitions for club sides based in Hertfordshire and occasionally, north-west London: [5][6][7] This rugby union article is a stub.