Alexandra Mary Freesia Pelham, Lady Worsley, CBE (née Vivian; 27 February 1890–21 September 1963) was a British volunteer and courtier.
On 31 January 1911, she married Lt. Charles Pelham, Lord Worsley, the eldest son and heir of the 4th Earl of Yarborough.
In 1914, Lady Worsley's husband was killed on active service in Belgium during World War I after only three years of marriage.
In 1945, she was appointed an OBE for her service to the war effort with the WVS and became an Extra Woman of the Bedchamber to Queen Elizabeth in 1947.
In 1953, she was promoted to a CBE for her work with the Victoria League and died, aged 73, in 1963.