HUMAN NAME · NOT ON THE REGISTRY

Thierno

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. Thierno, as recorded
Sex	Male
2025 rank	4,841
2025 number	21
Peak year	2021
Peak rank	4,613
Years present	30 of 146
Dog licences, New York	–
Pet licences, Seattle	–

Statement of record

Thierno was given to 21 boys in 2025, ranking 4,841st for the year. It peaked in 2021, when it ranked 4,613th and went to 22 babies. It has appeared in 30 of the 146 years on record. It has climbed 1,416 places since 2020.

Figure 1. Popularity of a Name: Thierno

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, by spelling. Ends in a vowel. The pronouncing dictionary has no entry, so the letters were sounded out by a stated rule.

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.