Peter Thomas Anderson AM (born 23 November 1947), a former Australian politician, was a member of the New South Wales Legislative Assembly representing Nepean between 1978 and 1981, Penrith between 1981 and 1988, and Liverpool between 1989 and 1995 for the Labor Party.
At the subsequent election, which was a landslide victory for the ALP under Neville Wran, Anderson defeated the sitting Liberal Party member, Ron Rofe.
In a shock result, Anderson lost the previously safe Labor seat at the 1988 election to the Liberals' Guy Matheson.
In February 1989, former cabinet minister George Paciullo resigned from the seat of Liverpool, having lost a caucus ballot for the post of Opposition Leader.
By this time Anderson was seen as an ambitious and divisive threat to Bob Carr (Labor leader since 1988), and the party central office declined to intervene on his behalf or nominate him for the Legislative Council.
Anderson's public political career ended at the 1995 election but he was subsequently appointed Chairman of the New South Wales Tow Truck Authority.