2,182 dog names end in -a. 1,468 of them measure female and 134 male — a ratio no other filter on this site comes close to. The ending reads feminine in English and, for once, the measurement agrees emphatically.
Why the vowel is worth having
Nothing about the ending is specific to dogs, but the ratio is. Across the whole catalogue the same ending runs 1,479 female to 135 male — a far softer split than the dog-only figures above. Whatever makes owners hear -a as feminine acts hardest when the animal is a dog.
The catch is length, and it shows in the density. 765 of these run to three syllables or more, and the slice averages 53 registrations against 127 for dog names ending in -y, which are almost all two beats.
Soft and elegant, by the numbers
975 classify soft-sounding and 764 elegant, against 45 strong. That profile costs density: the slice averages 53 registrations against 127 for names ending in -y.
572 are four letters or fewer, which is where the ending's advantage survives without the abbreviation problem.
Are dog names ending in A female?
Overwhelmingly in these registers: 1,468 measure female against 134 male. It is the cleanest gender signal in the catalogue.
Why is an -a ending good for calling?
An open vowel survives distance where a soft consonant does not. It is the last sound the animal hears and the first one a gust removes if it is weak.
Do long -a names keep the ending?
Often not. 765 run to three syllables or more and the household short form usually drops the final vowel. Choose the abbreviation yourself.
Every count on this site is a tally of real registrations: pet licences and shelter intakes published as open data by New York, Seattle, Austin, Montgomery County, Cambridge, Zurich, Basel and four Australian councils. Popularity here is the average share a name holds across those registers, so a name common in a small city is not buried by one common in a large one. Five of the eleven registers are North American and they supply 86% of the records, so read the ordering as naming in those places rather than worldwide. Browse the whole catalogue or read how the data is put together.