Cuthbert Cowan (1835 – 4 April 1927) was a 19th-century Member of Parliament from Southland, New Zealand.
Cowan represented the Wallace electorate in 1869, but he resigned after only three months, and then the Hokonui electorate from 1884 to 1890, when he retired. He unsuccessfully contested the Awarua electorate in both the 1896 general election and the 1897 by-election against Joseph Ward.
He died in April 1927 in Invercargill aged 92.