Members of the New South Wales Legislative Assembly, 1859–1860

This is a list of members of the New South Wales Legislative Assembly from 1859 to 1860:

¹ East Maitland MLA Joseph Chambers was appointed Crown Prosecutor for the Western Districts on 31 August 1859 and resigned his seat. The resulting by-election on 15 September 1859 was won by James Dickson. ² Yass Plains MLA Thomas Laidlaw resigned on 2 September 1859 after it was discovered that he held a position as postmaster. He resigned that position and was elected unopposed on 20 September 1859. ³ East Macquarie MLA William Suttor resigned on 13 September 1859. The resulting by-election on 6 October 1859 was won by Thomas Hawkins. ⁴ Illawarra MLA John Hargrave resigned on 11 October 1859. The resulting by-election on 28 October 1859 was won by Samuel Gordon. ⁵ Mudgee MLA Lyttleton Bayley resigned on 26 November 1859. The resulting by-election on 19 December 1859 was won by Samuel Terry. ⁶ The state of Queensland was established during 1859, and on 10 December the seats in present-day Queensland ceased to be part of the New South Wales Parliament. These seats were Burnett, Brisbane, Darling Downs, East Moreton, West Moreton, Ipswich and Leichhardt. ⁷ West Macquarie MLA John McPhillamy resigned on 6 December 1859. The resulting by-election on 28 December 1859 was won by Henry Mort, who was unopposed. ⁸ East Sydney MLA Charles Cowper resigned on 17 November 1859. The resulting by-election on 20 January 1860 was won by Peter Faucett. ⁹ Canterbury MLA Edward Flood resigned on 13 January 1860. The resulting by-election on 4 February 1860 was won by John Lucas. ¹⁰ Williams MLA Stephen Dark resigned on 25 January 1860. The resulting by-election on 16 February 1860 was won by Alexander Campbell. ¹¹ Windsor MLA William Dalley resigned on 25 February 1860 to undertake a visit to Europe. The resulting by-election on 12 March 1860 was won by William Walker. ¹² Liverpool Plains MLA Andrew Loder resigned on 5 March 1860. The resulting by-election on 10 April 1860 was won by Charles Kemp. ¹³ Hunter MLA Richard Jones resigned on 10 April 1860. The resulting by-election was won by Isidore Blake. ¹⁴ St Leonards MLA Edward Sayers resigned on 16 April 1860. The resulting by-election on 2 May 1860 was won by James Farnell. ¹⁵ East Macquarie MLA Thomas Hawkins resigned on 10 April 1860. The resulting by-election on 10 May 1860 was won by Daniel Deniehy. ¹⁶ Tumut MLA George Lang resigned on 10 April 1860. The resulting by-election on 10 May 1860 was won by Daniel Deniehy, who also won the East Macquarie by-election. Deniehy took up his representative duties for East Macquarie and was never recognised as the member for Tumut. ¹⁷ Wollombi MLA William Cape resigned on 13 April 1860. The resulting by-election on 17 May 1860 was won by Joseph Eckford. ¹⁸ Wellington MLA Nicolas Hyeronimus died on 27 June 1860. The resulting by-election on 26 July 1860 was won by Silvanus Daniel. ¹⁹ Morpeth MLA Edward Close Jr. resigned on 12 July 1860. The resulting by-election on 7 August 1860 was won by Samuel Cohen. ²⁰ Braidwood MLA Frederick Cooper resigned on 14 July 1860. The resulting by-election on 10 August 1860 was won by Merion Moriarty. ²¹ The seat of Tumut was vacant as the winner in the previous by-election, Daniel Deniehy, had also won East Macquarie. A by-election was scheduled but Charles Cowper, Jr. was unopposed and was declared elected on 8 November 1860.

There was no party system in New South Wales politics until 1887. Under the constitution, ministers were required to resign to recontest their seats in a by-election when appointed. These by-elections are only noted when the minister was defeated; in general, he was elected unopposed.