Henry Frederick Conrad Sander (Heinrich Friedrich Conrad Sander; 4 March 1847 in Bremen – 23 December 1920 in Bruges) was a German-born orchidologist and nurseryman who settled in St Albans, Hertfordshire, England and is noted for his monthly publication on orchids, Reichenbachia, named in honour of Heinrich Gustav Reichenbach of Hamburg, the great orchidologist.
In 1867 Sander entered the employ of James Carter & Co., a nursery at Forest Hill, meeting the Czech explorer and plant collector Benedict Roezl. Roezl had been shipping plants to England for some time, but needed a reliable agent there to manage sales, leaving him free to collect and explore. Their business association was to prove a profitable one.