John Francis Lane Mullins PC KCSG JP (12 June 1857 – 24 February 1939) was an Australian politician and prominent Catholic layperson in the late nineteenth and early twentieth century New South Wales.

He was born in Sydney to clerk James Mullins and Eliza Lane from County Cork, Ireland.

He served on Sydney City Council from 1900 to 1904 and from 1906 to 1912, and in 1903 was appointed Knight of St Gregory and Privy Chamberlain to Pope Pius X.

From 1917 to 1934 he was a Nationalist (later United Australia Party) member of the New South Wales Legislative Council.

Lane Mullins died at Elizabeth Bay in 1939.