Sophie Emma Magdalene Grieve (née Law; 4 May 1858 – 21 December 1941) also known as Maud, Margaret, Maude or Mrs. Grieve, was the principal and founder of The Whins Medicinal and Commercial Herb School and Farm at Chalfont St. Peter in Buckinghamshire, England. Grieve was a Fellow of the Royal Horticultural Society, President of the British Guild of Herb Growers, and Fellow of the . She is best known for her 1931 book, A Modern Herbal.