Research per Wikipedia:Arbitration/Index/Cases and Signpost archive. This is a list of all admins desysopped since 2010 (unless I missed one) and a partial list prior to that.
Created before I noticed Wikipedia:Former administrators/reason/for cause.
2017
edit- Arthur Rubin (talk · contribs · deleted contribs · logs · filter log · block user · block log) 16 October 2016
2016
edit- Kevin Gorman (talk · contribs · deleted contribs · logs · filter log · block user · block log) 18 January 2016 died
2015
edit- Yngvadottir (talk · contribs · deleted contribs · logs · filter log · block user · block log) 23 October 2015 (Bureaucrats' noticeboard)
- Kww (talk · contribs · deleted contribs · logs · filter log · block user · block log) 3 August 2015
- Chase me ladies, I'm the Cavalry (talk · contribs · deleted contribs · logs · filter log · block user · block log) 9 June 2015
2014
edit- DangerousPanda (talk · contribs · deleted contribs · logs · filter log · block user · block log) 16 December 2014
- Toddst1 (talk · contribs · deleted contribs · logs · filter log · block user · block log) case suspended 26 February 2014, rights allowed to expire 1 March 2015 (Wikipedia:Arbitration/Requests/Case/Toddst1)
- Kafziel (talk · contribs · deleted contribs · logs · filter log · block user · block log) 27 January 2014
- Nightscream (talk · contribs · deleted contribs · logs · filter log · block user · block log) 18 January 2014
2013
edit- Ironholds (talk · contribs · deleted contribs · logs · filter log · block user · block log) 14 August 2013
2012
edit- Hawkeye7 (talk · contribs · deleted contribs · logs · filter log · block user · block log) 15 February 2012
- Will Beback (talk · contribs · deleted contribs · logs · filter log · block user · block log) 27 February 2012
- Rich Farmbrough (talk · contribs · deleted contribs · logs · filter log · block user · block log) 15 May 2012
- Kwamikagami (talk · contribs · deleted contribs · logs · filter log · block user · block log) 18 July 2012
- Fæ (talk · contribs · deleted contribs · logs · filter log · block user · block log) 21 July 2012 - voluntarily "under circumstances..." must re-RfA
2011
edit- Cirt (talk · contribs · deleted contribs · logs · filter log · block user · block log) September 2011
2010
edit- MZMcBride (talk · contribs · deleted contribs · logs · filter log · block user · block log) resigned his adminship 6 April 2009 while a request for arbitration was pending, must re-RfA (Wikipedia:Requests for arbitration/MZMcBride, Wikipedia:Arbitration/Requests/Case/MZMcBride 2)
Older
edit- GlassCobra (talk · contribs · deleted contribs · logs · filter log · block user · block log) 11 October 2009 (Law/The Undertow case), restored 11 January 2010
- Pastor Theo (talk · contribs · deleted contribs · logs · filter log · block user · block log) September 2009 socking (10 sockpuppets)
- Wifione (talk · contribs · deleted contribs · logs · filter log · block user · block log) resigned (Wikipedia:Arbitration/Requests/Case/Wifione)
- Runcorn (talk · contribs · deleted contribs · logs · filter log · block user · block log) (Wikipedia:Wikipedia Signpost/2007-06-04/Admin desysopped) (Special:Diff/134649206#Runcorn and sockpuppets banned) (18 socks)
- NSLE (talk · contribs · deleted contribs · logs · filter log · block user · block log) (Wikipedia:Wikipedia Signpost/2006-06-12/NSLE desysopped)
- Archtransit (talk · contribs · deleted contribs · logs · filter log · block user · block log) (Wikipedia:Wikipedia Signpost/2008-02-25/Sockpuppeting administrator)
- Wikipedia:Wikipedia Signpost/2007-05-07/Admins desysopped (admin account compromise)
- Everyking (talk · contribs · deleted contribs · logs · filter log · block user · block log) (Wikipedia:Wikipedia Signpost/2006-09-05/Everyking desysopped)
- Tango (talk · contribs · deleted contribs · logs · filter log · block user · block log) (Wikipedia:Requests for arbitration/Tango) 16 May 2008
- Yanksox (talk · contribs · deleted contribs · logs · filter log · block user · block log) (Wikipedia:Requests for arbitration/Daniel Brandt deletion wheel war) 8 March 2007
- Gaillimh (talk · contribs · deleted contribs · logs · filter log · block user · block log) (ditto)
- Geni (talk · contribs · deleted contribs · logs · filter log · block user · block log) (ditto)
- Essjay (talk · contribs · deleted contribs · logs · filter log · block user · block log) Arbcom and admin Essjay controversy March 2007