Rapper Metro Boomin was allegedly forced to evacuate a yacht docked in Miami waters after a blaze engulfed the ship ... resulting in a fiery spectacle.

According to Miami-Dade Fire Rescue ... a 95-foot luxury yacht went up in flames  minutes after it arrived to a dock outside a strip club around 3:30 AM on Sunday.

We're told fire crews immediately went about putting out the fire, which was made difficult by the vessel's size and fuel load.

Local10 -- a local Miami outlet -- reports the ship was rented by Metro Boomin.

The fierce flames forced a harrowing evacuation of 10 guests, apparently including MB, as well as 5 crew members.

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No injuries were reported at the scene and the cause of the fire is under investigation.

We've reached out to a rep for Metro Boomin ... so far, no word back.