Youre Onto A Winner With This One. Acey, A Boys Name Of English Origin, Means "number One" Or "the Best." A Variation Of Ace, This Name Has A Certain Retro Charm Thats Bound To Give Any Little Star A Confidence Boost. In A Deck Of Cards, The Ace Might Change Between Having The Lowest Or The Highest Value, But Baby Is Sure To Be Top Of The Class With This Striking Name.