Sir Robert Woolley Walden (1853 - 14 August 1929) was a chemist and local politician in the Westminster area.
Born in Spalding, Lincolnshire, he trained as a chemist, qualifying in 1872. he moved to London where he carried on business at Elizabeth Street, SW1.
He was a justice of the peace and held a commission in the 1st Volunteer Battalion, Royal Fusiliers. When the Metropolitan Borough of Westminster was formed he was elected to the first city council. He became an alderman in 1905, and was Mayor of Westminster in 1907-08.
He was appointed a Knight Officer of the Royal Order of Wasa by the King of Sweden in 1909 and knighted in 1921.
He died at his home in Warlingham, Surrey, in 1929, aged 78.