The Bavin ministry was the 44th ministry of the New South Wales Government, and was led by the 24th Premier, the Honourable Thomas Bavin, MLA, in a Nationalist coalition with the Country Party, led by the Honourable Ernest Buttenshaw, MLA. Following an agreement by the Nationalist and Country parties not to stand candidates against each other, the coalition won the 1927 state election, defeating the Labor government led by Jack Lang. Bavin became Premier and Colonial Treasurer; and Buttenshaw, a senior minister.