The 1864–65 New South Wales colonial election was for 72 members representing 60 electoral districts. The election was conducted on the basis of a simple majority or first-past-the-post voting system. In this election there were 8 multi-member districts returning 20 members and 52 single member districts. In the multi-member districts each elector could vote for as many candidates as there were vacancies. 11 districts were uncontested.