Thomas Leeson Scrase Rowbotham (sometimes called Thomas Leeson Rowbotham the Elder or Thomas Leeson Rowbotham Senior; and his third forename sometimes given as Scarse) (1782–1853) was an English watercolourist and oil painter. He was a skilled painter of landscapes and marine subjects, became professor of drawing at the Royal Naval School and produced books on painting and drawing. He contributed 258 watercolours of scenes from Bristol, England to the topographical collection of George Weare Braikenridge. The Braikenridge Collection makes Bristol's early 19th century appearance one of the best documented of any English city.