|Other names||Moskovskaya Storozhevaya Sobaka|
|Dog (domestic dog)|
The Moscow watchdog (Russian: московская сторожевая, tr. Moskovskaya Storozhevaya) is a guard dog developed in the former Soviet Union, now Russia. It descends from crosses between the St. Bernard, the Caucasian Shepherd Dog and the Russian Pinto Hound. It contains the physical size, attractiveness and intelligence of a St. Bernard and the awareness and assertive traits of a Caucasian Shepherd Dog.
Moscow watchdogs stand at least 68 centimetres (27 in) tall and 66 centimetres (26 in) in females but the ideal heights is at least 77–78 centimetres (30–31 in) in males, 72–73 centimetres (28–29 in) in females. The breed should weigh at least 55 kilograms (121 lb) in males and 45 kilograms (99 lb) in females. Their coat is a dense, double coat capable of withstanding extreme cold. Coat color can be red piebald, white with red spots, red-black, black-red, or sable spots, with a black mask on the head.
The Moscow Watchdog is self-confident and balanced in temperament, but it requires training and early socialization with both people and animals. As a companion, the Moscow Watchdog is known to be a gentle giant, assertive and protective of his or her family when in danger. Raised properly with training and discipline, the Moscow Watchdog adapts easily to any environment and is a perfect protective family pet. The dog is reserved towards strangers.
Following World War II, loss of working dogs and rising crime created a demand in the Soviet Union for a guard dog that was cold tolerant down to −30 – −40 °C (−22 – −40 °F) and highly adaptable to different structures and environments, such as warehouses, railroads, labor camps and infrastructure. In response to this demand. the Central School of Military Dog Breeding, a department of the USSR Ministry of Defense, developed the Russian watchdog using crosses between Caucasian Shepherd Dogs, St. Bernards and Russian Pinto Hounds. In 1958, the first breed standard was published. The Central School of Military Dog Breeding, today known as the 470th Methodological and Canine Center, continues to breed Moscow watchdogs today.
In 1992, the breed standard was approved by the Federation of the Dog Breeders of Russia and in 1997, by the Department of Animal Breeding and Pedigree of the Ministry of Agriculture of Russia. The standard was also approved by the Russian Kennel Club in 1997.
The Russian Kennel Club is working with the International Kennel Federation (FCI) to gain official recognition. Currently, the Moscow Watchdog is considered by the FCI as part of the 2nd group Molosser. In FCI sanctioned dog shows, they are shown in what is referred to as a "Special Show." Inside Russia, they are widely shown and a recognized breed.
Outside of Russia
Until recently, Moscow Watchdogs were uncommon outside of Russia and the former Soviet states; however, they are now becoming more popular in Europe. In 1986, the first few Moscow watchdogs were brought to Hungary for breeders to help popularize the breed. Future growth was guaranteed by devoted breeders and also the breed owner, Club Karakán. In addition, dozens of breeders from the former Soviet states had also worked with the breed to ensure their existence for the future. Currently, around 500 Moscow Watchdogs can be found in Hungary. The first litter of Moscow Watchdogs was born in the US on June 6, 2015. There are currently 27 Moscow Watchdogs living in the United States. 
- "Breed standard Moscow watchdog". National Breed Club Moscow Watchdog (in Russian). 2008-04-23. Retrieved 2023-04-16.
- "История создания породы Московская сторожевая" [The history of the creation of the Moscow watchdog breed]. National Breed Club Moscow Watchdog (in Russian). Retrieved 2023-04-16.
- "Moscow Watchdog - Gentle Giant or Warrior". Russian Dog.net. Russian Dog: All Russian dogs and Russian dog breeds. Retrieved 13 August 2013.
- "Spartan dogs- Moscow Watchdog, Moscow dog". Spartan dog. Archived from the original on 3 March 2016. Retrieved 13 August 2013.
- Takács, István. "Moscow Watchdog History". Jéke Kincse Kennel. Gem of Jeke Kennel. Retrieved 13 August 2013.
- Юрченко, Юрий (2016-01-30). "Войсковая часть 32516 (470-й методико-кинологический центр)" [470th Methodological and Canine Center of the Armed Forces of the Russian Federation (military unit 32516)]. Воинские части России (Military Units of Russia) (in Russian). Retrieved 2023-04-16.
- "Moscow Watchdogs in US". Glorious Kennels. Archived from the original on 30 August 2015. Retrieved 12 September 2015.