Sir Robert Inigo Tasker, TD, DL, JP (1868–28 February 1959) was a British architect and Conservative politician.
Robert was the son of George Tasker, and following education at Ardingly College he joined his father's architectural practice in 1892. He became senior partner in the firm in 1916. He was a member of the Institute of Registered Architects, and was on the council of the Architects Registration Council of the United Kingdom.
Tasker held a commission in the British Army Volunteer and Territorial Forces between 1900 and 1920. He was appointed a second lieutenant in the 21st Middlesex Rifle Volunteers in 1900. In 1908 the unit became the 11th Battalion of the London Regiment (Finsbury Rifles). Following the outbreak of war, he reached the rank of major in 1916.
He was elected to the London County Council in March 1910, representing Holborn as a member of the majority Municipal Reform Party, which was allied to the parliamentary Conservative Party. He resigned his seat in October 1914 when he entered active military service, returning to the council at the 1922 election. He remained a member of the council until 1937 and served as chairman between 1930 and 1931. He was knighted in 1931 at the end of his term of office. In October 1935 he was granted the freedom of the Metropolitan Borough of Holborn. He was also a member of three livery companies of the City of London: the Paviors, Fan Makers and Gardeners.