Fujiwara no Tadaie (藤原 忠家, 1033 – December 19, 1091), also known as Mikohidari Tadaie, was a Japanese statesman, courtier, politician, poet and calligrapher during the Heian period.

[3] Tadaie did well at court, rising to the Senior Second Rank and the office of Dainagon (Major Counselor).

[4] In this period of Japanese history, the duties of Imperial courtiers included an expectation that each would create and present poems.

[5] An incident from Tadaie's life is featured in a poem which captured a fleeting moment and a gallant gesture: Examples of calligraphy attributable to Tadaie are identified variously by the Japanese government as a "National Treasure", as an "Important Art Object" and as an "Important Cultural Property".

[4] Tadaie was the grandfather of the poet Fujiwara no Toshinari (1114–1204),[9] who was also known as Shunzei.