An individual; a private person — referring to a single person rather than an organization; also used in contexts like 'personal'.
個人情報は慎重に扱うべきだ。
Personal information should be handled carefully.
個人の意見を尊重する。
Respect an individual's opinion.
これは個人の問題なので、会社は関与しない。
This is a personal matter, so the company will not get involved.
A natural person (in legal terms) — an individual human being as opposed to a juridical person (corporation).
法律では個人と法人で責任の範囲が異なる。
Under the law, the scope of responsibility differs between individuals and corporations.
個人事業主は法人と扱いが異なることが多い。
Sole proprietors are often treated differently from corporations.