Musselburgh-born William Walker was a Scottish engraver. He is known for his engravings of Sir Henry Raeburn's portraits of Sir Walter Scott and Raeburn himself; both prints are in the National Galleries of Scotland’s collection. These engravings are often cited as among the finest examples of stipple work ever produced. In 1815, Walker went to London and studied line engraving with James Stewart, stipple engraving with Thomas Woolnoth and mezzotinting with Thomas Lupton. He returned to Scotland in 1819, but eventually settled in London after marrying the famous miniaturist, Elizabeth Reynolds.