Sir John Henry Birchenough, 1st Baronet, GCMG (7 March 1853 – 12 May 1937) was an English businessman and public servant.
Birchenough was born in Macclesfield, Cheshire, the second son of John Birchenough, a silk manufacturer. He was educated firstly at Strathmore House, Southport, then subsequently at the University of Oxford, University College, London (BA, 1873; MA, 1876),. It was at University College London that he became close friends with Leonard Montefiore, the Jewish philanthropist. This friendship was described in the introduction to Montefiore's posthumous "Essays and Letters" as "the greatest friendship of his life- a friendship which was marred by no reserves and subject to no fluctuations but continued from its first commencement to Montefiore's death". Latterly Birchenough attended the École Libre des Sciences Politiques, Paris. According to an obituary published by Reuters at the time of his death it was whilst at Paris that he "obtained a much wider and less insular view of national and international problems, particularly in regard to tariffs, than he could have got at that period in England."
In the mid-19th century, Macclesfield had a thriving silk industry, and Birchenough joined the family silk business, John Birchenough & Sons, as a partner with his father and two brothers, Walter Edwin Birchenough (the father of the Very Reverend Godwin Birchenough) and William Taylor Birchenough. The latter was married to Jane Peacock, daughter of Richard Peacock MP, the locomotive manufacturer.
The Birchenoughs, who were Methodists, were a prominent business family in Macclesfield, and Henry's father, a Liberal, served as mayor of the town in 1876. In common with other silk manufacturing families in Macclesfield Henry Birchenough was engaged in supporting local charities and served variously as the chairman of the Technical School, the School of Art and the "Useful Knowledge Society" in Macclesfield.