David Luciano Acosta, known professionally as Baby Ranks, is a Puerto Rican reggaeton artist.He has co-billing on the Luny Tunes album Mas Flow 2, and sings on multiple tracks including the single "Mayor Que Yo" ("Older than Me"). The album ranked #5 on the Billboard year-end Latin Album Chart, #7 on the year-end Tropical Album Chart, and #9 on the Reggae Album Chart, for the year 2005. "Mayor Que Yo" won Reggaeton Song of the Year at the 2006 Latin Billboard Music Awards.

After more than a decade laying down tracks for other artists, Baby Ranks saw the release of his long-in-the-making solo debut, Mi Flow: This Is It, in the summer of 2008.