The 2017 season was Western New York Flash's tenth season, and the first in which they competed in the United Women's Soccer league in the second division of women's soccer in the United States. It was an almost entirely different team from the prior season's, which competed in the top-division National Women's Soccer League before being sold and moved to North Carolina.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.