Onomancy
Onomancy (Greek onoma, name) is divination by analyzing a person's name. Variants: numerological onomancy (sum of letter values, see Pythagorean numerology), symbolic onomancy (etymological meaning), kabbalistic onomancy (gematria).
Modern application
Pythagorean numerology of the name calculates Expression number (all letters), Soul Urge (vowels), Personality (consonants). Each generates a personality interpretation.