Sir John Henderson Stewart, 1st Baronet, DL, JP, FRGS (26 November 1877 – 6 February 1924) was a Scottish whisky distiller.
He was also sole partner of Fraser, Stewart & Co, whisky merchants, and deputy chairman of Sheffield Steel Products.
His son Sir Bruce Stewart, 2nd Baronet, was born on 6 September 1904 and became a Flying Officer in the New Zealand Air Force.
He was deeply in debt at the time, as his business was not doing well and an Edinburgh company in which he also had large interests, Aitken, Melrose & Co Ltd, had collapsed the previous day.
On 1 October 1924, one of Stewart's creditors, John Quiller Rowett, to whom he owed nearly £100,000, hanged himself in his London home.