The goddess most associated with seduction is Peitho.
Peitho, in Greek mythology, was the goddess or the personified spirit (daimona) of persuasion, seduction, and charming speech. Her name literally translates to "persuasion." While not as widely known as other Olympian gods and goddesses, her role was essential in facilitating attraction, agreement, and the art of winning someone over.
Therefore, although various deities were associated with love and beauty, which are related to seduction, Peitho specifically embodies the power of persuasion and alluring speech that is central to the act of seduction.