William Wilson McCardle JP (1 April 1844 – 4 January 1922) was a member of the New Zealand Legislative Council. Born in Scotland, he came to New Zealand as a young man and lived in a variety of places. He was a nurseryman and advocated for land reform. He established the town of Pahiatua and it was in the Wairarapa district that his local government involvement was most influential. He stood in a number of general elections for Parliament, but was never successful. A committed liberal politician, he was appointed to the Legislative Council by the first Ward Ministry in 1907 and served for one term until 1914.