The centre-back has agreed a one-year contract at The Valley after impressing while on trial during pre-season, most notably in a friendly against Crawley Town.
And boss Chris Powell is relishing starting the new campaign with the 24-year-old, who should be eligible for the season opener against Birmingham City on Sunday, subject to international clearance being received.
"We're delighted to get Dorian on board and he will enhance our squad," said Powell.
"He has done very well during his trial period, and we feel he will bring extra quality to our ranks. We're very pleased and look forward to working with him."
Dervite becomes Powell's fourth signing of the summer after Jordan Cook, Salim Kerkar and Lawrie Wilson and will compete for a central defensive role with Matt Taylor, Leon Cort and Yado Mambo.
The ex-France youth international started his career with French side Lille and made the switch to Spurs' academy in 2006 where he made only one appearance for the side.
Following a successful loan spell with Southend United in 2009, Dervite joined Villarreal and has played 23 league games for Villarreal B over the past two seasons.
