This paper challenges the idea that harmonious relations prevailed amongst Bath's various religious denominations during the ‘Age of Reform’, from the 1820s to the 1860s. It reveals instead that the public expression of anti-Catholic opinion was a regular feature of the city's political scene in this period. An anti-Catholic ‘crusade’, directed against such local targets as Prior Park and Downside colleges, and ‘Popery’ in general, was sustained by a variety of local organizations and national organizations that had branches in Bath, as well as prominent Tory activists resident in the city. Many Irish-born evangelical clergymen played a prominent role in this crusade. It is not surprising, given the prominence of Irish clergymen in Bath's anti-Catholic movement, that protests against the state endowment of Maynooth College were popular with the city's anti-Popery activists; furthermore, several proselytizing organizations whose principal aim was the conversion of Ireland's Catholics to the Protestant faith had a permanent base in Bath. The perceived iniquitous effects of ‘Popery’ in Ireland formed part of the anti-Catholic crusade's propaganda message. While the anti-Popery cause appealed particularly to the city's Church of England community, with many of its clergymen and prominent lay Anglicans to the fore of the anti-Catholic agitation, it attracted support from all sections of Protestant society.