noun
Refers to the official or full name of a person, organization, product, etc., as opposed to a nickname, abbreviation, or common name.
この書類には正式名を記入してください。
Please write your formal name on this document.
会社の正式名は「株式会社〇〇」です。
The company's official name is '〇〇 Co., Ltd.'
通称 is a common or popular name, often used in everyday contexts, whereas 正式名 is the official registered name.
Compound of 正式 (formal, official) and 名 (name).