A-L
M-S
Malet Dasim
Bob Toomey
Alex Saviuk
GL 130
 7/80
Malvolio
Christopher Priest
M. D. Bright
Action Comics 632
December 1988
Markot Five
Geoff  Johns
Ivan Reis 
GL v4 13
August 2006
Matoo and Amnee Pree
Sterling Gates
Jerry Ordway
Superman Prime Special 1
December 2007
M'Dahna
Len Wein, Mike Barr
Joe Staton
Tales of the GL Corps 2 
June 1981
Meadlux 
Joey Cavalieri
George Tuska
GL 166
July 1983
Although depicted as a Guardian in his first appearance, Meadlux has always been shown as a Green Lantern subsequently.
Medphyl of J586
John Broome
Gil Kane
Green Lantern 11
March 1962
Mogo 
Alan Moore
Dave Gibbons
GL188
May 1985
Morro 
Geoff Johns
Ivan Reis
GL v4 12
July 2006
NautKeLoi of Aeros
John Broome
Gil Kane
GL 9
December 1961
Norchavius 
Marv Wolfman, Jim Starlin
DC Comics Presents 26 
October 1980
Okonoko 
Kurt Busiek
Dave Gibbons
GL 162
3/83
Olapet 
Steve Englehart
Joe Staton
GL Corps 217 
10/87
Oliversity
Steve Englehart
Joe Staton
GL Corps 222 
3/88
Opto389v 
Grant Morrison
Giuseppe Camuncoli
Fifty-Two 41
2007
Palaqua
Steve Englehart
Bill Willingham
Tales of the GLCorps Ann 2 
1986
Penelops of Penelo
Len Wein, Mike Barr
Joe Staton
Tales of the GL Corps 3 
July 1981
Penn Maricc
Mindy Newell
George Freeman
Tales of the GLCorps Ann 2 
1986
Perdoo 
Len Wein 
Bill Willingham
GLAnn v3 5
1996
Priest
James Owlsley
M. D. Bright
Action Comics Weekly 623
October 1988
Procanon Kaa
Joey Cavalieri
Gil Kane
GL Corps 224 
5/88
Raker Qarrigat
Scott Beatty
Joyce Chin
GL80 Pg Giant 3
August 2000
R'Amey Holl 
Keith Champagne
Patrick Gleason
GL Corps 7
Feb 2007
Rees-Van
Geoff Johns
Ivan Reis
GL v4 11
June 2006
Relok Hag 
Geoff Johns
Ivan Reis
GL v4 12
July 2006
Remnant Nod 
Gary Kohn 
Mike Sekowsky
GL 170 
November 1983
Rori Dag of Rojira
Gardner Fox
Sid Greene
GL 67
March 1969
Rori Stroh of Rojira
John Broome
Gil Kane
GL 9 
December 1961
RRU-9-2 
Chuck Dixon
Joe Staton
Guy Gardner 11
August 1993
Saarek of Vulcan
Denny O'Neil
Mike Grell
GL 90 
Sept 1976
Salaak of Slyggia 
Marv Wolfman
Joe Staton
GL149 
February 1982
Sendrina 
Dave Gibbons
Dave Gibbons
GLCorps 5
Dec 2006
Sherrif Mardin 
Mike Baron
Chas Turog
GLC Quarterly 6 
Fall 1993
Shilandra Thane 
Doug Moench
Paul Gulacy
GLC Quarterly 1 
Summer 1992
S-Z
Shorm
Dave Gibbons, Geoff Johns
Patrick Gleason
GL Corps:Recharge 1 
November 2005
Sinestro of Korugar
John Broome
Gil Kane
GL 07
August 1961
Skirl of Nirdoor
Steve Englehart
Joe Staton
GL 222 
3/88
Skryd
Len Wein, Mike Barr
Joe Staton
Tales of the GL Corps 1
May 1981
Sodam Yat
Alan Moore
Kevin O'Neill
Tales of the GLCorps Ann 2 
1986
Soranik Natu
Dave Gibbons, Geoff Johns
Patrick Gleason
GL Corps: Recharge 1 
November 2005
Spol  of Cyc 
Jack C. Harris
Jerome Moore
GL 169 
10/83
Stel of Grenda
John Broome
Gil Kane
GL11
March 1962
Symon Terrynce of Tanjent
Joey Cavalieri
Howard Simpson
GL v2 169
October 1983
T'cher 
Todd Klein 
Dave Gibbons
GL 167 
August 1983
Taa 
Chuck Dixon
Alcatnea
GL Ann v3 5
1996
Tagort 
Geoff  Johns
Simone Bianchi
GL v4 06
December 2005
Tahr  of Cyc
Paul Kupperberg
Paris Cullens
GL 156 
9/82
Talmadge
Todd Klein
Kevin O'Neill
GL 190
Jul 1985
Tomar Re of Xudar
John Broome
Gil Kane
GL 06
June 1961
Tomar-Tu 
Gerard Jones
Pat Broderick
GL v3 5 
Oct 1990
Tomy Fai 
Keith Giffen, Gerard Jones
M. D. Bright
GL: Emerald Dawn 5
April 1990
Torquemada 
Ron Marz
Kirk Jarvinen
GLC Quarterly 4
Spring 1993
Tuebeen
Paul Kupperberg
Mike DeCarlo
GL 155 
8/82
Turytt 
Geoff  Johns
Ivan Reis
GL v4 11
June 2006
Tylot 
Len Wein, Mike Barr
Joe Staton
Tales of the GL Corps 3 
July 1981
Umitu 
Gerard Jones
Romeo Tanghal
GLC Quarterly 4 
Spring 1993
Vandor 
Dave Gibbons
Patrick Gleason
GL Corps 1
8/06
Varix of Naktos
Paul Kupperberg
Trevor Von Eeden
Tales of the GLCorps Ann 2 
1986
Vath Sarn
Dave Gibbons, Geoff Johns
Patrick Gleason
GL Corps: Recharge 1 
November 2005
Venizz 
Geoff Johns
Simone Bianchi
GL v4 6
December 2005
Vode-M 
Geoff Johns
Etan Van Sciver
GL/Sinestro Corps Special 1
August 2007
Volk
Todd Klein
Kevin O'Neill
GL 190 
Jul 1985
Von Daggle
Keith Champage
Patrick Gleason
GL Corps 7 
Feb 2007
Voz 
Chuck Dixon
Joe Staton
Guy Gardner 11
August 1993
Wissen of Veltre 
Kurt Busiek
Jose Luis Garcia-Lopez
Tales of the GLCorps Ann 3
1987
Xax of Xaos
John Broome
Gil Kane
GL 09
December 1961
Xenofobe
Elliot S! Maggin
Curt Swan
Superman 295
January 1976
Xylph
Paul Kupperberg
Carmine Infantino
GL 151
 4/82
Zghithii 
Todd Klein
Kevin O'Neill
GL 190
Jul 1985
The Book of Oa lists even more Green Lanterns than this!