Clitumnus

{{For|the Italian river|Clitunno}}

{{For|the stick insect genus|Ramulus}}

{{short description|Deity in Roman mythology}}

In Roman mythology, Clitumnus ({{IPAc-en|k|l|ᵻ|ˈ|t|ʌ|m|n|ə|s}}; {{Langx|la|Clītumnus}}) was a son of Oceanus and Tethys.{{cn|date=February 2025}} He was the god of the Clitunno River in Umbria.

Reference to Clitumnus is best attested in Pliny the Younger "Letters" 8.8: "Hard by is an ancient and sacred temple, where stands Jupiter Clitumnus himself clad and adorned with a toga praetexta, and the oracular responses delivered there prove that the deity dwells within and foretells the future."{{cite book |last1=Pliny |last2=Firth |first2=J.B. (tr.) |title=Letters 8.8 |date=1900 |url=http://www.attalus.org/old/pliny8.html |accessdate=Mar 21, 2019}}

The Roman Emperor Caligula visited the sacred grove prior to his invasion of Germany, presumably to consult the oracle of Clitumnus.{{cite news |last1=Hofmann |first1=Paul |title=A Fount of Poetic Inspiration |url=https://www.nytimes.com/1998/09/20/travel/a-fount-of-poetic-inspiration.html |accessdate=Mar 21, 2019 |agency=The New York Times |date=Sep 20, 1998}}{{cite book |last1=Suetonius |title=Caligula 43 |url=https://www.perseus.tufts.edu/hopper/text?doc=Suet.%20Cal.%2043&lang=original |accessdate=Mar 21, 2019}}