UFC Fight Night: McGregor vs. Siver was a mixed martial arts event held on January 18, 2015, at the TD Garden in Boston, Massachusetts.

TD Garden is a multi-purpose arena in Boston, Massachusetts. It opened in 1995 as a replacement for the original Boston Garden and has been known as FleetCenter, and TD Banknorth Garden. The arena is located directly above the MBTA's North Station. It is the most visited sports and entertainment arena in New England, as nearly 3.5 million people visit the arena each year.