"So You Think You Can Dance" choreographer Alex Da Silva has just been sentenced to 10 years in prison for raping a former dance student ... and assaulting another.
43-year-old Da Silva was arrested back in 2009 and charged with multiple felonies stemming from allegations he raped and sexually assaulted four women ... all former dance students between the ages of 20 and 26.
Da Silva was only convicted of one count of rape and one count of assault with intent to commit rape.
The jury deadlocked on the remaining charges, which were subsequently dismissed.
Da Silva -- who appeared on Seasons 1-4 of SYTYCD -- was also ordered to register as a sex offender for life.
Source