May 30 – June 1, 2008
- A-Kon – Dallas, Texas (USA)
- Epitanime – Paris, France (Site language is French)
- Wizard World Philadelphia – Philadelphia, Pennsylvania (USA) — (Primarily a Comics Convention)
June 6 – 8, 2008
- KnoxCon – Gambier, Ohio (USA)
- OMG!!!con – Paducah, Kentucky (USA)
- OtakuOmaha – Omaha, Nebraska (USA)
- Sci-Fi Summer – Marietta, Georgia (USA) — (Primarily a Science Fiction Convention)
June 13 – 15, 2008
- Anime Mid-Atlantic – Virginia Beach, Virginia (USA)
- El Paso Anime Con – El Paso, Texas (USA)
June 14, 2008
- Assimilation – Kissimmee, Florida (USA) — (Primarily a Science Fiction Convention)
June 20 – 22, 2008
- AnimeNEXT – Secaucus, New Jersey (USA)
- Nicon – Hanover, Germany (Site language is German)
- Supanova Pop Culture Expo – Sydney, New South Wales (Australia)
- Yaoi Jamboree – Glendale, Arizona (USA)
June 21, 2008
- Summer Matsuri – Salem, New Hampshire (USA) — (This is a Mini-Con sponsored by Another Anime Convention)
- TFcon Toronto – Toronto, Ontario (Canada) — (This is a Toy Show/Convention)
June 21 – 22, 2008
- AnimeNeves – Ribeirão das Neves, MG (Brazil) (Site language is Portuguese) Note: I believe the site says that the Con has been postponed.
- JAFAX – Allendale, Michigan (USA)
June 25 – 29, 2008
- Origins Game Fair – Columbus, Ohio (USA) — (Primarily a Game Convention)
June 26 – 29, 2008
- Cleveland Colossal Convention – Beachwood, Ohio (USA)
- Wizard World Chicago – Rosemont, Illinois (USA) — (Primarily a Comics Convention) Note: Wizard World Chicago will present the world premiere of Batman Gotham Knight for an evening presentation on June 28, 2008.

June 27 – 29, 2008
- PersaCon – Huntsville, Alabama (USA)
- Supanova Pop Culture Expo – Perth, Western Australia (Australia)
June 27 – 30, 2008
- Gathering of the Gargoyles – Evanston, Illinois (USA) — (A special Con dedicated to the memory of the Gargoyles animated series)
June 28 – 29, 2008
- Made in Japan – Wiener Neustadt, Austria (Site language is German)
- Northern Anime Festival – Oshawa, Ontario (Canada)
July 3 – 6, 2008
- Anime Expo – Los Angeles, California (USA)
- CONvergence – Bloomington, Minnesota (USA) — (Primarily a Science Fiction Convention)
- Gen Con Australia – Brisbane, Queensland (Australia) — (Primarily a Game Convention)
- PortConMaine – Portland, Maine (USA)
July 5 – 6, 2008
- AniMex – Monterrey, NL (Mexico) (Site language is Spanish)
- Mecra Summer – Taipei, Taiwan (Site language is Chinese)
July 10 – 13, 2008
- Portus 2008 – Dallas, Texas (USA) — (Primarily a Harry Potter Convention)
July 12 – 13, 2008
- Anime TuCon – Tucson, Arizona (USA)
July 17 – 20, 2008
- Anime Friends – São Paulo, Brazil (Site language is Portuguese)
July 18 – 20, 2008
- AniMix – Killeen, Texas (USA) Note: This is their inaugural Con.
- Daigacon – Bowling Green, Kentucky (USA) Note: This Con has been postponed.
- Ikasucon – Fort Wayne, Indiana (USA)
- Metrocon – Tampa, Florida (USA)
July 19, 2008
- DC Anime Cosplay Party 2008 – Silver Spring, Maryland (USA) — (This is a cosplay event)
July 19 – 20, 2008
- WonderFest – Louisville, Kentucky (USA) — (Primarily a Model and Toy Convention)
July 24 -27, 2008
- Comic-Con International: San Diego – San Diego, California (USA) — (Primarily a Comics Convention)
July 25 – 27, 2008
- Ai-Kon – Winnipeg, Manitoba (Canada)
- Animecon – São Paulo, Brazil (Site language is Portuguese)
- MACOnvention – Leonding, Austria (Site language is German)
July 25 – 28, 2008
- Tokonatsu – Milton Bryan, England (UK) Note: This is an outdoor (camping) festival.
July 26 – 27, 2008
- Animecon – Tampereen, Finland (Site language is Finnish)
- AVCon – Adelaide, South Australia (Australia)
- Otakuthon – Montreal, Quebec (Canada) (Site languages are French and English)







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