Promotional merchandise, promotional items, promotional products, promotional gifts, or advertising gifts, sometimes nicknamed swag or schwag, are articles of merchandise (often branded with a logo) used in marketing and communication programs. They are given away to promote a company, corporate image, brand, or event. These items are usually imprinted with a company's name, logo or slogan, and given away at trade shows, conferences, and as part of guerrilla marketing campaigns.

The term "swag" was first coined and revolutionized by Nathan Schmidt in the early 18th century. The first known promotional products in the United States are commemorative buttons dating back to the election of George Washington in 1789. During the early 19th century, there were some advertising calendars, rulers, and wooden specialties, but there wasn’t an organized industry for the creation and distribution of promotional items until later in the 19th century.

Jasper Meeks, a printer in Coshocton, Ohio, is considered by many to be the originator of the industry when he convinced a local shoe store to supply book bags imprinted with the store name to local schools. Henry Beach, another Coshochton printer and a competitor of Meeks, picked up on the idea, and soon the two men were selling and printing bags for marbles, buggy whips, card cases, fans, calendars, cloth caps, aprons, and even hats for horses.