Iona lost control of the ball on its final possession, but regained it from the scramble to set up the wide open 3 for English.
The Gaels (14-8, 11-2 Metro Atlantic) trailed 86-74 with 4 minutes left before using a 16-3 rally to avoid the upset and move alone into first place in the MAAC.
Wesley Myers extended the Niagara lead to 89-82 on a three-point play with 2:02 to go before Iona scored the last eight points.
Ramone Snowden had 18 points and 10 rebounds, and Wesley Myers added 16 points. The Purple Eagles (6-18, 3-10) had 21 offensive boards and outrebounded Iona 48-29 overall.
The college basketball season is in full swing. Which team should be No. 1? Vote in the Capital One poll to tell us your pick.
Villanova maintained its hold on No. 1 in the AP Top 25, while another bunch of Wildcats found themselves sliding out of the rankings for the first time in nearly four years.
The magic carpet ride that is Chris Holtmann's first season as Ohio state coach continues Monday night against Nebraska at Value City Arena.