William Isaac Blanchard (died 1796) was an English stenographer.
Blanchard was the grandson of a French refugee, who resided in England.
He became a professional shorthand writer, and practised his art in Westminster Hall from 1767 till his death in 1796.
[1] His offices were at 4 Dean Street, Fetter Lane, and 10 Clifford's Inn.
[3] The method of stenography described in the second work was hardly practised, if praised in the Historical Account of Shorthand, under the name of James Henry Lewis.