Jay Gatsby from "The Great Gatsby" is a character who intentionally deceives others in order to achieve his goals. Gatsby's dishonesty is intended to help him win back his lost love, Daisy Buchanan, and to gain social status in the eyes of those around him. He constructs a false identity for himself, pretending to be a wealthy and successful man from an old and wealthy family in order to win Daisy's heart.
Gatsby's deception is not entirely malicious, as he believes that his actions will ultimately lead to his happiness and fulfillment. However, his deception ultimately leads to his downfall, as his lies are exposed and his dreams are shattered. Gatsby's dishonesty also has negative consequences for those around him, particularly Daisy and her husband Tom, who are caught up in the web of deceit that Gatsby has created.
Despite his flaws, Gatsby is a complex and sympathetic character who is driven by his own desires and emotions. His dishonesty is a reflection of the society in which he lives, where appearances and social status are valued above all else. Ultimately, Gatsby's deception serves as a cautionary tale about the dangers of chasing the American Dream and the consequences of living a life based on falsehoods.