Today's name: Oberon
Potential nicknames: Obie, Ober, Ron, Ronnie (a great way to honor a Ronald or Obie in your family tree) Bear, Bearie
Origin: Old German, meaning "royal bear," or "noble, bear-like," coming from the name Auberon (which is equally attractive) an Old French name from Frankish German origins. It is possible that Auberon and Oberon are related to the Germanic name Alberich. If indeed they are related to Alberich, then they are also related to the name Aubrey.
Popularity: I was shocked to learn that there were zero (five or less, as the SSA won't tell you when there is less than five) baby boys named Oberon and Auberon in 2010 and 2011. A pity, but that number rose to 11 boys in 2015.
Fun fact: (1) Oberon was King of the Faeries in Shakespeare's "A Midsummer Night's Dream," and he graces the pages of other medieval and Renaissance literature. Since then, a moon of Uranus was named Oberon, as well as Queen of the Faeries, Titania, and those were the first two moons of Uranus discovered. All of Uranus's moons were named after the characters of William Shakespeare and Alexander Pope. (2) Author Auberon Waugh. (3) Bell's Oberon Ale (beer).