Romeo and Juliet (Op. 64) (Russian: Ромео и Джульетта) is a ballet by Sergei Prokofiev based on William Shakespeare's play Romeo and Juliet. Music from the ballet was extracted by Prokofiev as three suites for orchestra and as a piano work.

The scene is Verona. Romeo, son of Montague, tries unsuccessfully to declare his love for Rosaline and is consoled by his friends Mercutio and Benvolio. As day breaks and the townspeople meet in the market, a quarrel develops between Tybalt, a nephew of Capulet, and Romeo and his friends. The Capulets and Montagues are sworn enemies, and a fight soon begins. The Lords Montague and Capulet join the fray, which is stopped by the appearance of the Prince of Verona, who commands the families to end their feud.

Juliet, playing with her nurse, is interrupted by her parents, Lord and Lady Capulet. They present her to Paris, a wealthy young nobleman who has asked for her hand in marriage.

Guests arrive for a ball at the Capulet house. Romeo, Mercutio, and Benvolio, disguised in masks, decide to go in pursuit of Rosaline.

Romeo and his friends arrive at the height of the festivities. The guests watch Juliet dance; Mercutio, seeing that Romeo is entranced by her, decides to distract attention from him. Tybalt recognizes Romeo and orders him to leave, but Capulet intervenes and welcomes him as a guest in his house.

As the guests leave the ball, Capulet restrains Tybalt from pursuing Romeo.

Unable to sleep, Juliet comes out onto her balcony and is thinking of Romeo, when suddenly he appears in the garden. They confess their love for each other.

Romeo can think only of Juliet, and, as a wedding procession passes, he dreams of the day when he will marry her. In the meantime, Juliet's nurse pushes her way through the crowds in search of Romeo to give him a letter from Juliet. He reads that Juliet has consented to be his wife.

The lovers are secretly married by Friar Laurence, who hopes that their union will end the strife between the Montagues and Capulets.

Interrupting the revelry, Tybalt fights with Mercutio and kills him. Romeo avenges the death of his friend and is exiled.

At dawn the next morning, the household is stirring, and Romeo must go. He embraces Juliet and leaves as her parents enter with Paris. Juliet refuses to marry Paris, and, hurt by her rebuff, he leaves. Juliet's parents are angry and threaten to disown her. Juliet rushes to see Friar Laurence.

She falls at the Friar's feet and begs for his help. He gives her a vial of sleeping potion that will make her fall into a death-like sleep. Her parents, believing her to be dead, will bury her in the family tomb. Meanwhile Romeo, warned by Friar Laurence, will return under cover of darkness and take her away from Verona.

That evening, Juliet agrees to marry Paris, but the next morning, when her parents arrive with him, they find her apparently lifeless on the bed.

Romeo, failing to receive the Friar's message, returns to Verona stunned by grief at the news of Juliet's death. Disguised as a monk, he enters the crypt and, finding Paris by Juliet's body, kills him. Believing Juliet to be dead, Romeo drinks a vial of poison. Juliet wakes and, finding Romeo dead, stabs herself.