Below is a list of the promotional giveaways for the 2018 Arizona Diamondbacks Season.
| March | ||
| Date | Description | Quantity |
| March 29 | Pre-game Fiesta - Fry's Food Stores 2018 Schedule Magnet - Pepsi Rally Towel - Leslie's Pool Supplies |
40,000 40,000 |
| March 30 | 20th Anniversary Reusable Bag - MLB Network Post Game Fireworks - Gila River Hotels & Casinos |
|
| March 31 | 20th Anniversary Replica Jersey - Chase | 20,000 |
| April | ||
| Date | Description | Quantity |
| April 21 | Pre-game Fiesta - Fry's Food Stores Archie Bradley Audio Bobblehead - Gila River Hotels & Casinos |
20,000 |
| April 22 | Kids Ball & Bat Set - MLB Play Ball & Chevrolet Kids 12 and younger | 5,000 |
| May | ||
| Date | Description | Quantity |
| May 4 | Postgame Fireworks - Gila River Casinos | |
| May 5 | Pregame Cinco De Mayo D-backs Fiesta Sugar Skull Tee - State Forty Eight |
20,000 |
| May 13 | Mother's Day Tote Bag - Pepsi | 10,000 |
| May 28 | Memorial Day Camo Cap - Sanderson Ford | 20,000 |
| June | ||
| Date | Description | Quantity |
| June 1 | Postgame Fireworks - Gila River Casinos | |
| June 2 | Star Wars Day Star Wars Paul Solo Bobblehead - Cox Communications |
20,000 |
| June 3 | Native American Recognition Day - Gila River Hotels & Casinos | |
| June 17 | Father's Day Hawaiian Shirt - Tyson Foods | 15,000 |
| June 30 | Duffel Bag - Gila River Hotels & Casinos | 20,000 |
| July | ||
| Date | Description | Quantity |
| July 4 | 4th of July Fireworks Spectacular - Gila River Hotels & Casinos | |
| July 21 | Bobblehead | 20,000 |
| August | ||
| Date | Description | Quantity |
| August 4 | Alumni Game - Sanderson Ford All-Time Team Fan Vote Tee |
20,000 |
| August 5 | "National Trading Card Day" Pack - Topps Trading Cards | 20,000 |
| August 24 | Postgame Fireworks - Gila River Hotels & Casinos | |
| September | ||
| Date | Description | Quantity |
| September 7 | Postgame Fireworks - Gila River Hotels & Casinos | |
| September 8 | Hispanic Heritage Day - Bud Light Pregame D-backs Fiesta - APS Bobblehead |
20,000 |
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