January 20
Why this day? Sebastiao is a form of Sebastien, and shares its name day.
Roman officer of the third century, at the heart of the Empire. He defended those around him and persecuted Christians against imperial authority, refusing to renounce his convictions despite torture.
What stays with us: We learn here that loyalty to the weakest can require immense courage. Refusing to bow to violence remains an act of absolute freedom.
Source: Wikidata
Sebastiao is celebrated in Brazil on January 20.
Sebastião has roots in the Greek "Sebastios," meaning "venerable" or "respectable," carrying with it an aura of ancestral dignity. The name is historically linked to Saint Sebastião, the Roman martyr known for his resilience, which gave it a connotation of strength and protection. Over the centuries, it has remained popular in Brazil, often associated with figures of leadership and firm character. It is a name that carries the weight of tradition, yet with the lightness of one who knows how to honor their roots.
The typical Sebastião is the one who arrives late to the party but brings the best guacamole, being the heart of the friend group. He has a "cute uncle" or "protective older brother" energy, always ready to offer practical advice (and sometimes unsolicited). He has a dry humor that only those who have known him for years understand, and an incredible ability to turn any boring situation into an inside joke. He is the type of person who organizes the barbecue but is also the first to wash the dishes afterward.
Playful portrait, for entertainment.
What science says. The effect of a first name on character is documented, and several scientific studies have looked into it. They do not show that a name contains a hidden personality, but that it captures attention, triggers social expectations and slightly changes the way others respond to us. Read our article what the psychology of first names is based on to find out more.
In love, Sebastião is the one who shows affection through practical actions: fixing the dripping faucet, helping to move the sofa, and remembering to buy his partner's favorite ice cream. He is not one to cover his partner with flowers every day, but he is faithful as a rock and loyal to the end. His romance is built on trust and comfort, preferring movie nights on the sofa to noisy clubs. When he falls in love, he assumes the role of a team partner, facing life side by side with a subtle smile.
The name Sebastiao has Greek origins, derived from Sebastios, and means 'venerable' or 'respectable'.
Ucy.me attributes the date of January 20th to the name Sebastiao, celebrating it annually on this day.
The name Sebastiao was registered in 462,505 births in Brazil, reaching its peak popularity in 1955.
The most common forms include Sebastião, and the frequent diminutives are Beto, Tião, and Sebast.
Sebastiao is traditionally a masculine name, widely used for boys in Portuguese-speaking countries.
Playful profile, for entertainment.
A date that doesn't match your usage, a doubtful etymology? Tell us. We check the source and publish the correction — or the reason for the difference, right here.