This is a list of members of the New South Wales Legislative Council from 1955 to 1958. At this time the Council was not directly elected, but was chosen by a joint sitting of the New South Wales Parliament.
1 Labor MLC
Walter Padgen died on 8 May 1955. Liberal MLC
Henry Horne died on 14 July 1955. Liberal candidate
Herbert FitzSimons and Labor candidate
John Kenny were elected to replace them on 14 September 1955.
2 Labor MLC
Alan McNamara died on 5 May 1955. Liberal MLC
Thomas Armstrong died on 13 June 1955. Liberal candidate Colin Begg and Labor candidate
Christopher Love were elected to replace them on 15 September 1955.
3 Labor MLC Peter Fallon died on 9 February 1956. Labor candidate
Gavin Sutherland was elected to replace him on 2 May 1956.
4 Labor MLC
John Stewart died on 8 April 1957. Labor candidate
Tom Dougherty was elected to replace him on 24 September 1957.