Dr Charles Sheibner du Riche Preller FRSE FRGS MIEE MICE (1844–1929) was a German-born late 19th/ early 20th century British engineer and amateur geologist. He specialised in electric railways. He was fluent in English, French, German and Italian. He founded the Royal Society of Edinburgh's Bruce-Preller Lecture Prize in memory of his wife. He was Chairman and Chief Engineer of the Limmat Valley Electric Railway Company in Switzerland.