The 78ers are a group of LGBT activists who marched in the original Sydney Mardi Gras on 24 June 1978 and participated in the subsequent protests against police violence and the arrests of participants in the Mardi Gras

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The first Sydney Mardi Gras was an evening street protest in support of gay and lesbian rights along Oxford Street in Sydney on 24 June 1978. The protestors were assaulted and thrown in gaol, with many affected by the trauma for years afterwards. The 78ers were amongst those who participated in the Mardi Gras and the protest at Darlinghurst and Central Police Stations on 25 June 1978