The "Most Interesting Man in the World" is a fictional character created for a popular advertising campaign by Dos Equis, a Mexican beer brand. He is portrayed as a suave, adventurous man with a rich life full of extraordinary experiences, often sharing humorous anecdotes about his exploits. The character became iconic for his catchphrase, "Stay thirsty, my friends." The campaign began in 2006 and featured actor Jonathan Goldsmith as the character. His portrayal resonated with audiences, leading to a significant increase in Dos Equis sales. The character has since become a cultural reference point, symbolizing charisma and intrigue.