Guadalcanal Campaign is a 1982 computer wargame developed by Gary Grigsby and published by Strategic Simulations, Inc. (SSI).

Guadalcanal Campaign was a commercial and critical success that helped to establish Grigsby in the game industry.

[2] In early 1982, while phoning Strategic Simulations' hotline about its game Torpedo Fire, he got into a conversation with company head Joel Billings that led to an offer to publish Guadalcanal Campaign.

[3] Grigsby developed the game in his spare time at night while working a day job at the United States Department of Defense,[3] an arrangement he called "incredibly hard".

According to Craig Ritchie of Retro Gamer, it sold roughly 3,500 copies, which he called "an outstanding figure for such a niche market".