What Sunday is Easter on?

the first Sunday of April.

On some years Easter may fall on the first Sunday in April, but it falls on the first Sunday following the Vernal or Spring Equinox and can be any Sunday between March 22nd and April 25th. It will never be outside those dates.

In 2011 the dates for Easter are;

Good Friday April 22nd, 2011

Easter Sunday April 24th, 2011

Easter Monday April 25th, 2011

The related link below will give you a full list of dates for Easter from 2011 - 2020.