The logo is derived from the Western Diamondback Rattlesnake which still makes its home in Arizona's Sonoran Desert, where Phoenix and Tucson are located. The Diamondbacks logo has gone through only slight changes over their 17 years of existence.
2012 - Present
In 2012 the new logo continued with the sedona red, black and sonoran sand “A” in black with a sand outline, removing the wordmark with the extenders of the “A” and “K” that simulate snake fangs from the previous logo.
2008 - 2011
The block letter “A” is smaller and the wordmark size is increased. Colors have stayed the same. The letter “A” is still on top of the wordmark. The wordmark “DIAMOND” BACKS” now has extenders of the letters “A” and “K” to simulate snake fangs.
2007
The Diamondbacks unveiled a color and wordmark modification to their logo on November 8, 2006. Adding the colors sedona red, sonoran sand and black to the logo. No changes to the “A.” The wordmark font changed as well. The wordmark is still “DIAMOND” “BACKS.”
1998 - 2006
The Diamondbacks’ original logo was an italicized block letter “A” with a diamond pattern and a snake’s tongue. The wordmark “DIAMOND” “BACKS” below the “A.”