Giulio Cesare (Julius Caesar) is an Italian opera by George Frideric Handel. The libretto was written by Nicola Frecesco Haym. It was first performed in London on February 20, 1724.
The opera was an immediate success. Handel revived it (with changes) in 1725, 1730, and 1732; it was also performed in Paris, Hamburg, and Brunswick.
Like Handel's other works in the opera seria genre, Giulio Cesare fell into oblivion in the 19th century.
The work is considered by many to be Handel's finest Italian opera, possibly even the best in the history of opera seria. It is admired for its superb vocal writing, its dramatic impact, and its deft orchestral arrangements.
Giulio Cesare has become part of the standard operatic repertoire. There are several recordings of it, and it is regularly performed.