Darren Sharper -- Scratched from Celebrity Cruise ... After Rape Allegations

Darren Sharper has been REMOVED from an upcoming celebrity cruise to Mexico in the wake of horrific rape allegations ... TMZ Sports has learned.

We know ... the former New Orleans Saints superstar had been booked to appear on the 1st Annual "Saints Ahoy Charity Celebrity Fan Cruise" to Cozumel, Mexico on March 13th.

Sharper was supposed to join fellow Saints studs Lance Moore, Roman Harper and Kenny Stills.

But after Sharper was arrested in L.A. last month for allegedly raping multiple women -- the cruise decided to cut Sharper from the event immediately.

A rep for the cruise tells us, "The minute the allegation became public, Darren was removed from the cruise."

"The people in charge of the charities didn't want it to hurt the sales. It was the best thing for the cruise."