Fun Facts and Stats About Names Dog names, cat names, and humans too: Facts and Stats about the Dog name Rex from 27K+ adoptable Dogs across the U.S. that need homes Now! data last updated: 05/15/25 - Dig In Most adoptable Dogs with the the name rex live in the state of Texas. 26.3% live in Texas, 15.8% live in California 10.5% live in Florida and Ohio If you want to stand out take your Dog to New Hampshire (None live there). The majority of Dogs with the name Rex are in the other group Is Rex typically a male or female name? ♀♀♀♀♀ ♂ Rex is clearly a male Dog name. 99.99% of all Rex in the US are male whereas only 0.01% are female. FEMALEMALE If you're a Dog and your name is Rex you are most likelyA Pit Bull Terrier 14.29% of all Dogs named Rex are Pit Bull Terrier 14.29% are Labrador Retriever 9.52% are Shepherd 4.76% are Sloughi 4.76% are Catahoula Leopard Dog Rex is a very popular Dog name. Rex is currently the 34th most popular Dog name in the United States. Today, the name is as popular as never before. In the past few months, the name has gained more popularity. Cool fact: Louisiana is the state with the highest per capita adoptable Dogs named rex Check out the per capita popularity of Dogs named rex for each state in the map below. Is the Dog name rex only for Dogs? Nope The first name rex is a human name & There is also a Cat named rex Did you enjoy this page? Share it! Facebook Twitter Tumblr Reddit And check out more names: Bruno Hendrix Bubbles Zena