Cash ranks #236 with 460 entries and reads as a thoroughly modern American male pet name with two distinct cultural lineages: Johnny Cash for older owners, and the broader "single-syllable confident male name" trend that has fueled Ace, Rex, Max, and Cash itself for the past two decades.
The Johnny Cash anchor
Johnny Cash (1932-2003) gave the name a sustained country-music cultural footprint, especially among owners who lean rural or musician-adjacent. The 2005 biopic Walk the Line refreshed the reference for a younger audience. Pet Cashes in homes with country music interest often trace directly to Johnny Cash, and the name pairs well with black-coated dogs in a deliberate "Man in Black" wink.
One counter-reading: a growing share of younger owners pick Cash purely for the sound — short, sharp, confidently male — without consciously referencing Johnny. The single-syllable male name trend has been steadily climbing since the 2000s, and Cash benefits from that broader momentum independent of the country-music association.
Breed fit and sound
One syllable (KASH), with a clean K-opener and a sharp Sh-finish. Recall is excellent — the brevity and acoustic edges make Cash one of the clearer outdoor calls in this tier. The name lands disproportionately on Labradors, pit-bull-type rescues, and active medium-to-large male dogs. Black-coated dogs are over-represented for the Johnny Cash visual reason.
Crossover
The human Cash page shows a steady SSA climb since the 2000s. Owners cross-shopping similar one-syllable confident male names often consider Ace and Rex. Gender skew is heavily male, and the name pairs especially well with active medium-to-large dogs whose own confident bearing matches the single-syllable-sharp acoustic shape.