Monthly Comic Zero Sum
| Cover of the first issue of Monthly Comic Zero Sum | |
| Categories | Josei manga | 
|---|---|
| Frequency | Monthly | 
| Publisher | Ichijinsha | 
| First issue | May 2002 | 
| Country | Japan | 
| Language | Japanese | 
| Website | www | 
| Categories | Shōjo manga | 
|---|---|
| Frequency | Bimonthly (2008–2015) Quarterly (2003–2007) | 
| Publisher | Ichijinsha | 
| First issue | February 2003 | 
| Final issue | May 2015 | 
| Country | Japan | 
| Language | Japanese | 
Monthly Comic Zero Sum (月刊コミックZERO-SUM, Gekkan Komikku Zero Samu) is a josei manga magazine published by Ichijinsha and launched since March 28, 2002 (the May 2002 issue). Its volumes usually contain over 600 pages and tackles a variety of genres, with well-known manga like Saiyuki Reload, Amatsuki, 07-Ghost and Loveless often making appearances in its pages.
A special shōjo manga edition called Comic Zero Sum Ward (コミックZERO-SUM 増刊WARD, Komikku Zero Samu Zōkan Wādo) was published starting in August 2003. It ceased publication in May 2015.