It happened on the eastern side of the park, just north of 72nd Street.
[Ads /]
Eyewitnesses said the 77-year-old pedestrian was crossing in a crosswalk when the collision occurred.
There is a traffic light at the location but it is not clear who had the right of way.
The bicyclist is in critical condition. The pedestrian is expected to survive.
[Ads /]
There has been an alarming rise in accidents involving bicyclists and pedestrians in New York City.
So far this year, there have been 169 pedestrians injured by cyclists - up 14 percent from last year. There have been two fatalities.
----------
* More Manhattan news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube