Sigurd Ømann (16 August 1923 – 10 September 1988)[1] was chairman of the Socialist People's Party of Denmark in the period 1968–1974.

Born in Stokkemarke, Ømann became chairman of the Socialist People's Party when Aksel Larsen resigned in 1968.

The political climate in his period as chairman was marked by the 1972 referendum on Denmark's EC membership as well as the Social Democrats being in opposition and the need for the two left-wing parties to position themselves.

The parliamentary right-wing wanted to cut more costs than the Social Democrats or the Socialist People's Party wanted, so the two parties made an agreement on budget cuts and increases in corporation taxes.

Ømann's wish for cooperation with the Social Democrats was not universally supported inside the party where some members wanted a more critical line towards the center-left and more emphasis on appealing to extra-parliamentary organisations.