Trevor Albert de Cleene OBE (24 March 1933 – 22 April 2001) was a New Zealand politician and lawyer. After gaining experience as a councillor with Palmerston North City Council, he was elected to Parliament for the Labour Party in 1981. He was a strong supporter of Rogernomics and was a minister outside cabinet. He resigned his ministerial portfolios in 1988 when Roger Douglas was sacked by David Lange. For his remaining parliamentary career, he was a backbencher known as one of the Three Musketeers. Later, he was a founding member of ACT New Zealand and some years later joined the National Party to help oppose Winston Peters in Tauranga.