From DoomWiki.org

This table is generated by XymphBot script rankMappers.php and ranks the top-100 most prolific map authors by their number of map pages on the wiki (state of 2022-10-24 08:50 CDT):

Mapper Map Count
Paul Corfiatis 285
Mike MacDee 185
James Paddock 160
Michael Jan Krizik 153
Alexander S. 147
Scwiba 144
Samuel Villarreal 136
Shadowman 120
Matt Powell 113
Paul DeBruyne 111
Zachary Stephens 107
Richard Frei 104
Walter Confalonieri 102
Brett Harrell 100
Adam Windsor 97
Xaser Acheron 96
Stephen Clark 90
Josh Sealy 88
Sarah Mancuso 88
Jon Vail 86
Tomás Soares 83
Erik Alm 80
Sandy Petersen 79
Pinchy 78
Joshua O'Sullivan 77
Nicolas Monti 75
Andrea Gori 72
Adam Woodmansey 69
Cheesewheel 69
Matt Cibulas 69
James Cresswell 68
Paul Fleschute 68
Brayden Hart 67
Nigel Rowand 66
Scypek2 66
Ian Wilson 64
Clippy Clippington 63
Eugene Guschin 63
Donnel Enriquez 60
Daniel Jakobsson 59
TimeOfDeath 58
Björn Ostmann 57
Christen Klie 57
Daniel Gimmer 57
Thomas van der Velden 57
Mike Watson 56
Christian Hansen 55
Franck Livolant 55
Seongbae Park 55
Roberto Lopez 51
Jeffrey Graham 50
TheMionicDonut 50
Tim Heydelaar 50
Anthony Czerwonka 49
Arthur O. 49
Sverre André Kvernmo 49
Emil Brundage 48
John Romero 48
Anonymous 47
Christopher Lutz 47
Matthew Little 47
American McGee 46
James Caldwell 46
Riderr3 46
Alex Scott 45
Christopher Shepherd 45
Cyriak Harris 45
Ilya Lazarev 45
Rand Phares 45
Dzyan Kelsick 44
Lihanchi 44
Steven Phares 44
Malcolm Sailor 42
Travers Dunne 42
Adam Post 41
Blake Collins 41
Jan Van der Veken 41
Michael Fraize 41
Sergey Andreevich Burow 41
Adolf Vojta 40
BigMemka 40
Jason Root 40
Fiend 38
Glen Christie 38
Memfis 38
Pavel Tvrzník 37
Sincity2100 37
Alex Decker 36
Brian Knox 36
FireSeraphim 36
Ofisil 36
Ty Halderman 36
Darryl Steffen 35
General Roasterock 35
Justin Kelly 35
Kristian Käll 35
Michal Kurowski 35
Kristian Aro 34
Matthew Edwards 34
Tango 34

This table infers no opinion about mappers, their works, or their wiki coverage. Consider it merely "Fun with bot scripting, part XX". :-)