Anime-Cons.com (reference site)
Tokyo Anime Center
See also: tek's links: events

Note: I'll try as best I can to keep information (dates & locations) up to date for at least a month in advance. Info on events listed beyond that may be from the previous year.

January

• Ikkicon (Austin, TX; Jan. 1-3, 2010)
• Anime Los Angeles (Los Angeles, CA; Jan. 8-10, 2010)
• Setsucon (State College, PA; Jan. 16-17, 2010)
• Chibi Ushicon (Round Rock, TX; Jan. 29-31, 2010)
• Ohayocon (Columbus, OH; Jan. 29-31, 2010)

• Genericon (Troy, NY; Feb. 12-14, 2010)
• Katsucon (National Harbor, MD; Feb. 12-14, 2010)
• Naka-Kon (Kansas City, KA; Feb. 19-21, 2010)

• Animania Festival (Sydney, Australia; March 27-28, 2009)
• Animarathon (Bowling Green, OH; March 28, 2009)
• AnimeLand Wasabi (Denver, CO; Mar. 4-6, 2010)
• Anime Milwaukee (Milwaukee, WI; Mar. 12-14, 2010)
• Kawa Kon (St. Louis, MO; Mar. 12-14, 2010)
• MomoCon (Atlanta, GA; Mar. 20-21, 2010)
• Senshi-Con (Anchorage, AK; Mar. 20-21, 2010)
• Tokyo International Anime Fair (Tokyo, Japan; Mar. 27-28, 2010)
• Nishikaze (Lethbridge, Alberta, Canada; 2010)

• Animania Festival (Melbourne, Australia; April 17-18, 2009)
• AniZona (Phoenix, AZ; April 9-12, 2009)
• Anime Matsuri (Houston, TX; Apr. 2-4, 2010)
• Anime Punch! (Columbus, OH; Apr. 2-4, 2010)
• Sakura-Con (Seattle, WA; Apr. 2-4, 2010)
• Tekkoshocon (Pittsburgh, PA; Apr. 8-11, 2010)
• Castle Point Anime Convention (Hoboken, NJ; Apr. 11, 2010)
• Kawaii Kon (Honolulu, HI; Apr. 16-18, 2010)
• Anime Detour (Bloomington, MN; Apr. 23-25, 2010)
• Anime St. Louis (Collinsville, IL; Apr. 23-25, 2010)
• Middle Tennessee Anime Convention (Nashville, TN; Apr. 30-May 2, 2010)
• No Brand Con (Eau Claire, WI; Apr. 30-May 2, 2010)

• Anime Oasis (Boise, ID; May 27-30, 2010)
• Animania Festival (Brisbane, Australia; May 8-9, 2009)
• Anime Central (Rosemont, IL; May 8-10, 2009)
• Otafest (Calgary, Alberta, Canada; May 15-17, 2009)
• Anime Boston (Boston, MA; May 22-24, 2009)
• JACON (Orlando, FL; May 22-24, 2009)
• Animazement (Raleigh, NC; May 22-24, 2009)
• Anime North (Toronto, Ontario, Canada; May 22-24, 2009)
• FanimeCon (San Jose, CA; May 22-25, 2009)
• A-Kon (Dallas, TX; May 29-31, 2009)
• Japanese Anime & Manga Paradise Convention (Chatanooga, TN; May 21-23, 2010)

• ColossalCon (Sandusky, OH; June 4-7, 2009)
• OMG!!con (Paducah, KY; June 5-7, 2009)
• Anime Evolution (Vancouver, BC, Canada; June 12-14, 2009)
• AnimeNEXT (Somerset, NJ; June 12-14, 2009)
• PortConMaine (Portland, ME; June 18-21, 2009)
• Anime Mid-Atlantic (Hampton, VA; June 19-21, 2009)
• METROCON (Tampa, FL; June 19-21, 2009)
• The Japanese Animation, Film, and Art Expo (Allendale, MI; June 27-28, 2009)
• Kakkoi Con (Minneapolis, MN; June 18-20, 2010)

• Anime Expo (Los Angeles, CA; July 2-5, 2009)
• OtakuOmaha (Omaha, NE; July 3-5, 2009)
• Anime Festival Wichita (Wichita, KA; July 10-12, 2009)
• Tokyo in Tulsa (Tulsa, OK; July 10-12, 2009)
• Northern Anime Festival (Oshawa, ON, Canada; July 11-12, 2009)
• Yasumicon (Miami, FL; July 11-12, 2009)
• Animix (Killeen, TX; July 17-19, 2009)
• Otakon (Baltimore, MD; July 17-19, 2009)
• Ai-Kon (Winnipeg, MB, Canada; July 24-26, 2009)
• MechaCon (Lafayette, LA; July 24-26, 2009)
• PersaCon (Decatur, AL; July 24-26, 2009)
• Anime Festival Orlando (Orlando, FL; July 31-Aug. 2, 2009)
• ConnectiCon (Hartford, CT; July 31-Aug. 2, 2009)
• Otakuthon (Montreal, Quebec, Canada; July 31-Aug. 2, 2009)
• Southwest Animation Conference & Expo (Albuquerque, NM; July 31-Aug. 2, 2009)
• Tokonatsu Camping Anime & Manga Festival (Woburn, England; July 31-Aug. 3, 2009)

• Sogen Con (Sioux Falls, SD; August 6-8, 2009)
• Animethon (Edmonton, AB, Canada; August 7-9, 2009)
• Ikasucon (Fort Wayne, IN; August 7-9, 2009)
• AnimeIowa (Coralville, IA; August 14-16, 2009)
• Comiket (Tokyo, Japan; August 14-16, 2009)
• San Japan (San Antonio, TX; August 14-16, 2009)
• Kita-Con (Thunder Bay, ON, Canada; August 27-28, 2009)
• Matsuricon (Worthington, OH; August 28-30, 2009)
• Mizu Con (Miami, FL; August 28-30, 2009)
• AtsuiCon (Houston, TX; 2009)
• Ani-Jam (Fresno, CA; 2010)

• MikomiCon (Northridge, CA; Sept. 19-21, 2008)
• SacAnime (Sacramento, CA; Sep 3-5, 2010)
• Animania Festival (Sydney, Australia; September 4-6, 2009)
• Chibi-Pa (West Palm Beach, FL, September 4-6, 2009)
• AnimeFest (Dallas, TX; September 4-7, 2009)
• Anime Vegas (Las Vegas, NV; September 5-7, 2009)
• Kumoricon (Portland, OR; September 5-7, 2009)
• Nan Desu Kan (Denver, CO; September 11-13, 2009)
• Animania Festival (Brisbane, Australia, September 18-19, 2009)
• Anime Weekend Atlanta (Atlanta, GA; September 18-20, 2009)
• New York Anime Festival (New York, NY; September 25-27, 2009)

• Providence Anime Conference (Providence, RI; Oct. 3-5, 2008)
• MangaNEXT (Somerset, NJ; Oct. 31-Nov. 2, 2008)
• RealmsCon (Corpus Christi, TX; October 2-4, 2009)
• Tsubasacon (Huntington, WV; October 9-11, 2009)
• Bakuretsu Con (Colchester, VT; October 29-Nov. 1, 2009)
• Youmacon (Dearborn, MI; October 29-Nov. 1, 2009)
• Oni-Con (Houston, TX; Oct. 30-Nov. 1, 2009)
• SugoiCon (Ft. Mitchell, KY; October 30-Nov. 1, 2009)
• Yaoi-Con (San Mateo, CA; October 30-Nov. 1, 2009)

• Auchinawa (Glasgow, Scotland; Nov. 14-16, 2008)
• JaniCon (Jacksonville, FL; Nov. 21-23, 2008)
• Aki Con (Everett, WA; November 6-8, 2009)
• Anime NebrasKon (Omaha, NE; November 6-8, 2009)
• Nekocon (Hampton, VA; November 6-8, 2009)
• Pacific Media Expo (Los Angeles, CA; November 6-8, 2009)
• Izumicon (Midwest City, OK; November 13-15, 2009)
• Anime USA (Arlington, VA; November 20-22, 2009)
• Another Anime Convention (Nashua, NH; November 20-22, 2009)

• Kajonk-A-Con (Knoxville, TN; Dec. 4-6, 2009)
• Anime South (Destin, FL; Dec. 18-20, 2009)
• Comiket (Tokyo, Japan; Dec. 29-31, 2009)
• M.E.W. Convention (Vancouver, WA; December 31, 2009-Jan. 2, 2010)