The electoral district of Portland was an electoral district of the Legislative Assembly in the Australian state of Victoria.

It was based on the town of Portland, Victoria.

38°20′S 141°36′E / 38.333°S 141.600°E / -38.333; 141.600

First incarnation (1856–1904), Two members (1856–1859)
Member		Party	Term	Member		Party	Term
	Hugh Childers	None	1856–1857		Daniel Hughes	None	1856–1859
	John Findlay	None	1857–1859
	Norman McLeod	None	1859–1860
	William Haines	None	1860–1864
	John MacPherson	None	1864–1865
	Butler Aspinall	None	1866–1867
	James Butters	None	1868–1871
	Howard Spensley	None	1871–1873
	Thomas Must	None	1873–1877
	Thomas Cope	None	1877–1880
	Henry Wrixon	None	1880–1894
	Donald Norman McLeod	None	1894–1900
	Ewen Cameron	Conservative	1900–1904

Second incarnation (1945–2002)
Member		Party	Term
	Robert Holt	Labor	1945–1947
	Harry Hedditch	Country	1947–1949
		Liberal and Country	1949–1950
	Robert Holt	ALP	1950–1955
	George Gibbs	Liberal	1955–1967
		Independent	1967
	Don McKellar	Liberal	1967–1970
	Bill Lewis	Labor	1970–1973
	Don McKellar	Liberal	1973–1985
	Digby Crozier	Liberal	1985–1988
	Denis Napthine	Liberal	1988–2002

Napthine went on to represent the Electoral district of South-West Coast which was created in 2002.