It is Tatyana's name-day party. Onegin is annoyed that people are gossiping about him and Tatyana. He is cross with Lensky for making him come. He decides to make Lensky cross by dancing with his fiancée Olga. Olga likes this, and Lensky is very jealous. A singer entertains the party by singing a song in honour of Tatyana. Lensky is now furious and tells everyone in a loud voice that he is no longer Onegin’s friend. He challenges Onegin to a duel which Onegin has to accept to keep his honour. 