Ion Băieșu, pen name of Ion Mihalache (2 January 1933, in Aldeni, Buzău County – 21 September 1992, in Bucharest) was a Romanian playwright, novelist and movie and television writer, best known for his novel Balanța and his play Preșul.
Upon graduation, he worked for a rural commercial state enterprise.
His literary debut took place in 1956 with a series of short stories under the title "Necazuri și bucurii" (Troubles and Joy).
In 1985, he also became successful with his novel "Balanța", the story of a psychologist, Nela, and a doctor, Mitică Bostan.
He also wrote the script for the 1992 movie directed by Lucian Pintilie based on the same novel.