The Lacy Dog or Blue Lacy Dog is a breed of working dog that originated in Texas in the mid-19th century. The Lacy was first recognized in 2001 by the Texas Senate. In Senate Resolution No. 436, the 77th Legislature honored the Lacy as "a true Texas breed". In June 2005, Governor Rick Perry signed the legislation adopting the blue Lacy as "the official State Dog Breed of Texas". As expected, the vast majority of Lacy dogs are found in Texas. However, as the breed becomes more well recognized, there are breeding populations being established across the United States, Canada, and most recently in Europe.
The Lacy dog was named after the Lacy brothers (Frank, George, Edwin, and Harry Lacy) who moved from Kentucky to Texas in 1858, settling in Burnet County, Texas. The dog, according to the Lacy family, was a mixture of English Shepherd (or perhaps coyote), greyhound, and wolf. Texas House Concurrent Resolution No. 108 also mentions scenthound. The brothers originally developed the dogs' natural herding instincts to work the family's free-roaming hogs.
On March 15, 2005, in the 79th Legislature of the State of Texas, Representative Joaquin Castro and members of the Texas Lacy Game Dog Association filed House Concurrent Resolution No. 108, proposing the blue Lacy as state dog of Texas. This legislation was proposed to recognize the original breeders and their contribution to the State of Texas as well as to honor the Lacy as a Texas original. House Concurrent Resolution No. 108 was adopted by the Texas House of Representatives on May 15, 2005, and by the Senate ten days later on May 25, 2005. Governor Rick Perry signed the legislation adopting the Lacy as "the official State Dog Breed of Texas" on June 18, 2005.
The Lacy was proposed by some in 2008 to replace Reveille VII, a collie, as the mascot dog of Texas A&M. In accordance with tradition since Reveille III, however, a collie was chosen.
Lacys are generally very healthy dogs. Developed for generations to meet the requirements of ranchers and hunters, they are sturdy enough to withstand tough terrain, difficult working conditions, and both hot and cold weather by Texan standards. However, skin problems and food allergies can occur. Color dilution alopecia is very rare but has occurred in Lacys.