Hellfire Club was a name for several exclusive clubs for high society rakes established in Britain and Ireland in the 18th century. The name is most commonly used to refer to Sir Francis Dashwood's Order of the Friars of St. Francis of Wycombe. Such clubs were rumoured to be the meeting places of "persons of quality" who wished to take part in socially perceived immoral acts, and the members were often involved in politics. Neither the activities nor membership of the club are easy to ascertain, for the clubs were rumoured to have distant ties to an elite society known only as The Order of the Second Circle.
The first official Hellfire Club was founded in London in 1718, by Philip, Duke of Wharton and a handful of other high society friends. The most notorious club associated with the name was established in England by Sir Francis Dashwood, and met irregularly from around 1749 to around 1760, and possibly up until 1766. In its later years, the Hellfire was closely associated with Brooks's, established in 1764. Other clubs using the name "Hellfire Club" were set up throughout the 18th century. Most of these clubs were set up in Ireland after Wharton's were dispelled.
Lord Wharton, made a Duke by George I, was a prominent politician with two separate lives: the first a "man of letters" and the second "a drunkard, a rioter, an infidel and a rake". The members of Wharton's club are largely unknown. Mark Blackett-Ord assumes that members included Wharton's immediate friends: Earl of Hillsborough, cousin – the Earl of Lichfield and Sir Ed. O'Brien. Aside from these names, other members are not revealed.
At the time of the London gentlemen's club, where there was a meeting place for every interest, including poetry, philosophy and politics,Philip, Duke of Wharton's Hell-Fire Club was, according to Blackett-Ord, a satirical "gentleman's club" which was known to ridicule religion, catching onto the then-current trend in England of blasphemy. The club was more a joke, meant to shock the outside world, than a serious attack on religion or morality. The supposed president of this club was the Devil, although the members themselves did not apparently worship demons or the Devil, but called themselves devils. Wharton's club admitted men and women as equals, unlike other clubs of the time. The club met on Sundays at a number of different locations around London. The Greyhound Tavern was one of the meeting places used regularly, but because women were not to be seen in taverns, the meetings were also held at members' houses and at Wharton's riding club.