Valdir is of Portuguese origin, derived from the old Germanic element "wald" meaning "power," and "ric" signifying "mighty." This name gained popularity in Brazil during the 20th century, especially among families with Portuguese ancestry. It is often paired with similar-sounding names like Valdelício or Valdirene for siblings or family members. The name Valdir typically peaks around the middle of the alphabet, making it distinctive yet familiar to many Brazilians.
The name Valdir was quite popular in 1991 with five births recorded that year.