The Rat Terrier originates in the US where many of the breed's favorite names also come. A couple of fun US themes are Presidents and states. Names borrowed from US Presidents include Carter, Quincy, and Grant. A few state inspired ideas are Texas, Vermont, and Indiana. The breed was developed primarily to trap and kill rats other small vermin. Some names borrowed from various pest control solutions include Ortho, Victor, and Orkin. Other cool name ideas can be found throughout the nursery rhymes you heard as a child. A quite fitting name for the quick and nimble Rat Terrier breed would be Jack (the one that jumped over the candlestick...not the one that fell down and broke his crown). More fun nursery rhyme based names include Robin, Piper, Blue, and Muffet.