TWICE member Momo’s companion dog Boo has a limited but documented public background, while Korea’s public pet guidance sets out clear rules on leash use and identification tags for dogs taken outside. The available source material confirms Boo’s public introduction and the legal context around dog name tags, but it does not confirm any specific incident, complaint, fine, investigation, agency statement, or response from Momo involving Boo’s leash or identification tag.
Boo’s Public Background and Name Tag Context

Boo was publicly introduced through TWICE’s official Instagram, with NotePet / BeMyPet Creators reporting on May 11, 2020 that Momo had shared her first companion dog with fans. The article reported that Momo had considered whether to reveal the dog but wanted fans to see Boo, and it identified Boo as her first dog.1
That background is the only celebrity-specific foundation supported by the supplied entertainment source. It establishes that Boo’s name and relationship to Momo were made public through reported social media activity, not that a later dispute or enforcement action occurred. TenAsia later reported on January 22, 2021 that Momo had adopted a second dog, Dobby, described in the article as a rescue dog, and that Dobby was getting along with Boo.2
The selected issue, Momo Boo Privacy, is therefore best understood through the broader rules that apply to dog owners in Korea. Under public guidance, an identification tag is not simply an optional accessory. It is connected to animal registration, lost-pet prevention, and owner accountability. At the same time, the information required on a tag can include owner-linked details, which explains why privacy may become a practical concern when a public figure’s pet is photographed or discussed online.
The source material does not say whether Boo’s tag was visible in any image or whether any private information was exposed. It also does not provide the contents of any tag connected to Boo. What can be reported is narrower: Boo is a publicly known companion dog of Momo, and Korean guidance requires dogs taken outside to be both restrained and identifiable.
What Korean Guidance Requires for Leashes and Identification Tags
Easy Law, Korea’s public legal information service, states in guidance current as of May 15, 2026 that when taking a dog outside, the owner must use a leash or chest harness no longer than 2 meters, or use a carrier with a locking device. The same guidance says the dog must wear an identification tag showing the dog’s name, the owner’s contact information, and the animal registration number, and that violations may result in an administrative fine.3
That requirement is the clearest source-backed connection between Boo’s name and the privacy question. A compliant tag is meant to identify the animal and connect it to its registered owner. In ordinary circumstances, that information can help return a lost dog or confirm responsible ownership. In a celebrity context, the same required information may become sensitive if a photo or video captures it clearly enough to reveal personal contact details.
Seoul’s single-person household portal gives similar public-facing guidance. It lists leash use, attachment of an identification tag, and cleanup of pet waste as representative duties when going out with a companion dog. It also states that from April 27, 2023, safety management obligations were strengthened so ordinary companion dogs do not leave the place where they are kept without a guardian.4
The Seoul guidance adds that violations of these obligations can lead to fines of up to 500,000 won.4 The available source material does not state that Momo was fined or accused of violating those rules. It only confirms that leash length, restraint, identification tags, and supervision are matters covered by public guidance for dog owners.
The Ministry of Agriculture, Food and Rural Affairs has also treated leash, harness, and identification tag compliance as part of broader animal welfare and public coexistence policy. In its 2024 public awareness survey on animal welfare, published on January 22, 2025, positive responses on compliance with duties such as leash or harness use and identification tag attachment when going out with a companion dog rose from 44.3% in 2023 to 45.6% in 2024. The ministry also noted a large gap in perception between pet owners and non-pet owners.5
Policy Context Without a Verified Momo Enforcement Case
The broader policy direction has continued beyond individual walking rules. On February 27, 2025, the Ministry of Agriculture, Food and Rural Affairs announced the Third Comprehensive Animal Welfare Plan for 2025 to 2029. The plan included improving the implementation of existing systems such as animal registration, preventing abandoned and lost animals, and building a culture in which pet owners and non-pet owners can coexist.6
Those policy points help explain why leash and name tag rules are treated as public-interest matters. Restraint rules are aimed at safety in shared spaces, while tags and registration connect animals to owners and support recovery when pets go missing. None of those sources, however, creates a basis for claiming that Momo or Boo was involved in a confirmed legal or administrative matter.
For coverage of Boo, the careful distinction is important. The entertainment reports establish the identity and public background of Momo’s dogs. The public legal and policy sources establish what Korean pet owners are generally expected to do when taking dogs outside. The record provided here does not bridge those two areas with a verified case involving Boo’s leash, Boo’s tag, or Momo’s handling of either issue.

The supported conclusion is therefore limited but clear: Boo is a publicly identified companion dog of Momo, and Korean guidance requires outdoor dogs to be restrained and to wear identification carrying owner-linked information. Any discussion of Momo Boo Privacy should stay within that confirmed framework unless a specific verified incident, official statement, or enforcement record is available.
References
- 트와이스 모모, 반려견 ‘부’와 알콩달콩 일상 공개..”예쁘게 잘 키울게요” (노트펫 / 비마이펫 크리에이터즈, 2020-05-11)
- 트와이스 모모, 유기견 입양 "이름은 도비" [전문] (텐아시아, 2021-01-22)
- 반려견과 외출 시 이것만은 챙기세요 (찾기쉬운 생활법령정보)
- 외출 시 ‘목줄 길이 2m’로, 엘리베이터 등에서는 이동 없도록 주의 (서울시 1인가구포털)
- 「2024 동물복지에 대한 국민의식조사」 결과 발표 (농림축산식품부, 2025-01-22)
- ‘사람과 동물이 모두 행복한 동물복지 선진국’ 우리가 함께 만들어 갑니다! (농림축산식품부, 2025-02-27)