Ole is descended from the Old Norse "Óláfr" meaning ancestor's descendant. The same name gave rise to the popular Scandinavian names Olaf, Oleg, Olav, Oluf, Olov, etc. While Ole is commonly used as a nickname for these names, it has been much more common as a given name since at least the 1600s.
Ole Nydahl, also known as Lama Ole, is a Danish Lama in the Karma Kagyu school of Tibetan Buddhism. Since the early 1970s, Nydahl has toured the world giving lectures and meditation courses.
Ole was a very common name in Norway in the late 1800s. It ranked #1 in 1880, 1885, 1890, 1895, 1900, and 1905. It came in at #4 in 1910 (behind Olav, Arne and Johan), #7 in 1915, #8 in 1920, and was out of the top ten by 1925. It had a brief comeback in the 1970s, ranking #10 in 1975, #8 in 1980, and #9 in 1985.
https://www.beliebte-vornamen.de/4405-ole.htm
https://www.behindthename.com/name/ole/top/germany-berlin
https://de.m.wikipedia.org/wiki/Ole_(Vorname)
https://en.m.wiktionary.org/wiki/Ole#German
https://de.m.wikipedia.org/wiki/Ole_Bischof
https://de.m.wikipedia.org/wiki/Ole_K%C3%B6nnecke
https://de.m.wikipedia.org/wiki/Ole_Eisfeld
https://de.m.wikipedia.org/wiki/Ole_von_Beust