HUMAN NAME · NOT ON THE REGISTRY

Leah

A human name, held in the Social Security file. It is not in the Administration’s index of agent names, and it has no classification.

Table 1. Leah, as recorded
Sex	Female
2025 rank	58
2025 number	3,880
Peak year	2009
Peak rank	29
Years present	146 of 146
Dog licences, New York	149
Pet licences, Seattle	12

Statement of record

Leah was given to 3,880 girls in 2025, ranking 58th for the year. It peaked in 2009, when it ranked 29th and went to 6,790 babies. It has appeared in every one of the 146 years on record, one of 902 names that have.

Figure 1. Popularity of a Name: Leah

Human births per million, by sex, U.S. Social Security Administration, 1880 to 2025.Agents: 0 registered. The agent series begins when the registry does.

Villain probability

30%

Basis: phonetics. Ends in a vowel. The canon has no entry, so this is the sound of the name and nothing else.

Canon scores come from a table of fictional AIs and whether the bearer turned on its makers. Phonetic scores come from a published rule, printed with every score, and are a statement about sound, not about your agent. How the sound is scored.

As recorded on the Social Security card application. Names given to fewer than five babies of a sex in a year are not published, so the file is a floor.