It should certainly be noted that (unlike Christmas), Easter's date is not fixed for reasons of pagan observation, but is intended to mark the approximate anniversary of the historical event it commemorates. As Jesus was crucified on the eve of Passover, early Christians - who were, by anyone else's standards, Jews anyway - marked the occasion together with Passover proper.

The name of Easter in English does indeed derive from that of a pagan goddess with a similarly-timed feast, but in most other languages, the name is taken from Pesach = Passover:

French: Pâques
Swedish: Påsk
Norwegian: Påske
Dutch: Pasen
Latin: Pascha - from which we get the word paschal

(Thanks to Sharq for linguistic help.)

Table for finding the date of Easter and of Passover, based on one by the World Council of Churches at
www.wcc-coe.org/wcc/what/faith/easter.html:

Astron. = The astronomically calculated date of Easter, based on the meridian of Jerusalem.
Greg. = Date of Easter in the Gregorian Calendar. (Western tradition)
Julian = Date of Easter in the Julian Calendar. (Orthodox tradition)
Vernal = Date of the Vernal Full Moon.
Pesach = Date of Passover.
Year    Astron.    Greg.      Julian     Vernal     Pesach
2001   15 April   15 April   15 April    8 April    8 April 
2002   31 March   31 March    5 May     28 March   28 March
2003   20 April   20 April   27 April   16 April   17 April
2004   11 April   11 April   11 April    5 April    6 April
2005   27 March   27 March    1 May     25 March   24 April
2006   16 April   16 April   23 April   13 April   13 April
2007    8 April    8 April    8 April    2 April    3 April
2008   23 March   23 March   27 April   21 March   20 April
2009   12 April   12 April   19 April    9 April    9 April
2010    4 April    4 April    4 April   30 March   30 March
2011   24 April   24 April   24 April   18 April   19 April
2012    8 April    8 April   15 April    6 April    7 April
2013   31 March   31 March    5 May     27 March   26 March
2014   20 April   20 April   20 April   15 April   15 April
2015    5 April    5 April   12 April    4 April    4 April
2016   27 March   27 March    1 May     23 March   23 April
2017   16 April   16 April   16 April   11 April   11 April
2018    1 April    1 April    8 April   31 March   31 March
2019   24 March   21 April   28 April   21 March   20 April
2020   12 April   12 April   19 April    8 April    9 April
2021    4 April    4 April    2 May     28 March   28 March
2022   17 April   17 April   24 April   16 April   16 April
2023    9 April    9 April   16 April    6 April    6 April
2024   31 March   31 March    5 May     25 March   23 April
2025   20 April   20 April   20 May     13 April   13 April