The 2008 Slammiversary was a professional wrestling pay-per-view (PPV) event produced by the Total Nonstop Action Wrestling (TNA) promotion that took place on June 8, 2008 at the DeSoto Civic Center in Southaven, Mississippi. It was the fourth event under the Slammiversary name and the sixth event in the 2008 TNA PPV schedule. Seven professional wrestling matches and one dark match were featured on the event's card, three of which were for championships. The event commemorated TNA's six year anniversary.

Slammiversary is a professional wrestling pay-per-view (PPV) event produced by the American promotion Total Nonstop Action Wrestling. It is one of TNA's “Big Four” PPV events, and celebrates the anniversary of the promotion's first event that was held on June 19, 2002.