Prior to 1904, opposition to the government of the day was less organised.

Thus, the Victorian Parliamentary Record does not designate Leaders of the Opposition before then.

They act as a chief critic of the government and ultimately attempt to portray the party in opposition as a feasible alternate government.

The office is currently held by Brad Battin after his election to the position of leader of the Liberal Party on 27 December 2024.

Leanne Castley (Lib) Mark Speakman (Lib) Selena Uibo (ALP) Steven Miles (ALP) Vincent Tarzia (Lib) Dean Winter (ALP) Brad Battin (Lib) Shane Love (Nat)