Louis Arnold Jacoby is a Norwegian singer and writer from Larvik. Jacoby grew up in Larvik's Torstrand district but has lived in Ula for many years. He is the son of the writer Arnold Jacoby.
Jacoby has won the Prøysen Award and the Herman Wildenvey Poetry Award, and he was named "Beer Dog of the Year" by the Norwegian Brewery Association in 1990. His best-known song "Hverdag" has been named one of Norway's national songs. Jacoby won the summer song competition held by the Nitimen program in 1995 for the song "En sommer er aldri over". Jacoby has published Den store ølviseboka and released several albums, including Hverdag and Noen & ingen. From 1994 to 1999 he was essentially the in-house poet for the TVNorge's talk show Wesenstund. For several weeks he held a place on the musical hit list Norsktoppen with the song "Vise ved vindens enger". The album Noen & ingen was on Norsktoppen for ten weeks in 2003, including two weeks in first place. In 2008 Jacoby released the CD Puslespill. In 2013 he released the CD Måneskinn. In the fall of 2016 he published a skerry calendar with photos of skerries accompanied by QR codes linking to accompanying songs and videos.