知しる人ひとぞ知しる

expression

well-known to those in the know; known to connoisseurs

A set phrase used to describe something that is highly regarded or famous within a specific, often niche, group, but not widely known to the general public. Often used to praise hidden gems, such as restaurants, products, or experts.

• このラーメン屋やは知しる人ひとぞ知しる名めい店てんだ。

  This ramen shop is a famous establishment known to those in the know.

• 彼かれは知しる人ひとぞ知しる腕うで利ききの職しょく人にんです。

  He is a skilled craftsman known to connoisseurs.