HUMAN NAME · NOT ON THE REGISTRY

Deirdre

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. Deirdre, as recorded
Sex	Female
2025 rank	7,989
2025 number	13
Peak year	1961
Peak rank	333
Years present	103 of 146
Dog licences, New York	–
Pet licences, Seattle	–

Statement of record

Deirdre was given to 13 girls in 2025, ranking 7,989th for the year. It peaked in 1961, when it ranked 333rd and went to 799 babies. It has appeared in 103 of the 146 years on record. It has fallen 981 places since 2020.

Figure 1. Popularity of a Name: Deirdre

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

42%

Basis: phonetics. Two voiced obstruents, 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.