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Fujii (common Japanese surname)
A common Japanese surname, built from 藤 (wisteria) + 井 (well), another combination typical of surnames descended from branches of the 藤原 clan.
藤井さんに電話をかけた。
I called Mr./Ms. Fujii.
藤井 pairs 藤 (wisteria) with 井 (well), following the same naming pattern as 藤田 and other 藤-based surnames.
Cultural note
Like other surnames built on 藤, 藤井 traces back to descendants and retainers of the 藤原 clan, who took surnames combining the 藤 character with a place or landscape feature associated with their family.