Castlemaine XXXX

XXXX Brewery, Milton
XXXX Logo.png

XXXX (pronounced four-ex) is a brand of Australian beer brewed in Milton, Brisbane by Queensland brewers Castlemaine Perkins (now a division of the Japanese-owned company Lion). It enjoys wide popularity in the state of Queensland, where it is commonly found on-tap in pubs and bars.

The XXXX brand was first introduced in 1924 and is a throwback to the long-standing tradition of using Xs to indicate the strength of an ale. The brand name also built upon XXX Sparkling Ale introduced in 1878.