Yadier is a masculine given name. It has Hebrew origins where it means "friend or companion". It is a Spanish-language name, popular in Cuba and Puerto Rico.
People with the name Yadier Álvarez (born 1996), Cuban baseball pitcher Yadier Molina (born 1982), Puerto Rican baseball catcher Yadier Pedroso (1986–2013), Cuban baseball pitcher Yadier Sánchez (born 1987), Cuban volleyball player
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