Sidnei is of Brazilian origin, meaning 'from Sidon', an ancient Phoenician city. It is a unique and stylish choice for a first name, offering a distinct sound while still being easily pronounced. The name has gained popularity in Brazil and other Portuguese-speaking countries, but remains relatively uncommon elsewhere.
Sidnei saw a peak in popularity with 7 births in 2006, but has remained consistent with around 6 births per year since then. However, there was a notable drop to just 5 births in 1995. Overall, the name Sidnei has seen a total of 24 births over these years.