Founded in September 2005, San Diegans for 9/11 Truth is one of many citizen activist organizations across the country dedicated to uncovering the truth behind the wrongful deaths that took place on September 11, 2001. Concerned about evidence that contradicts the official account published in The 9/11 Commission Report, the group is calling for a reopening of the case and an unbiased investigation into the events of 9/11.

San Diegans for 9/11 Truth holds a general meeting the second Sunday of each month. Topics typically are devoted to 9/11 approximately 2/3 of the meetings, and other apparently false flag events the other 1/3.

The other regular activity is a monthly outreach next to the U.S.S. Midway Museum. This normally is the afternoon of the first Sunday of each month. During football seasons, alternative Sundays may be selected to avoid conflict with Charger games.