Drummond received his early education at the Royal High School of Edinburgh, and graduated in July 1605 as M.A. of the recently founded University of Edinburgh. His father was a gentleman usher at the English court (as he had been at the Scottish court from 1590) and William, in a visit to London in 1606, describes the festivities in connection with the visit of the king of Denmark. Drummond spent two years at Bourges and Paris in the study of law; and, in 1609, he was again in Scotland, where, by the death of his father in the following year, he became laird of Hawthornden at the early age of 24.