Tyr (TEER, alternatively TER in some other countries) is an Old Norse boy's name and the god from which Tuesday was named (perfect for a baby born on a Tuesday). He was likely the son of Odin and Thor's brother. In Old Norse literally means "god," and he was the god of law, justice, war and heroic glory. He was known as the one-handed god because he had his hand chewed off by the wolf god Fenrir. He was also thought to be the bravest god in the Norse pantheon. His tales were told in the Prose Edda and Poetic Edda, and there is enough historical data to prove he was a very important god in ancient times.
In the U.S. this is a rare baby name, given to only 10 boys in 2016 and only used since 2002. The recent Thor movies did not impact this name, but I thought parents would've been inclined to research other Norse mythology names. Odin and Thor are doing well on the charts, though, and Loki is being used a bit more but would still be considered rare.