Pierre Bernac, French opera singer and educator (d. 1979)
Pierre Louis Bernac (né Bertin; 12 January 1899 – 17 October 1979) was a French singer, a baryton-martin, known as an interpreter of the French mélodie. He had a close artistic association with Francis Poulenc, with whom he performed in France and abroad. Poulenc wrote 90 songs for him during their 25-year musical partnership.

Bernac was well known as a teacher; among the singers who studied with him were Elly Ameling, Grace Bumbry, Mattiwilda Dobbs, Carol Neblett, Jessye Norman and Gérard Souzay. He gave masterclasses in France, Britain and the US.

In retirement, Bernac wrote two highly regarded books about the interpretation of mélodies in general and Poulenc's in particular.