Leonberger

Across 36 single-size giant breeds, a lifespan midpoint of 7 years is about 3.2 years shorter than the 10.2-year average. A midpoint adult weight of 130 lb is about 14 lb heavier than the 116 lb average for those giant breeds.

The listed origin is Germany. The coat is described as double, long. The AKC energy score is 3 out of 5, 0.7 points below the group average of 3.7 for the Working Group. Shedding scores 4 out of 5, so coat cleanup is a regular job. Grooming scores 4 out of 5, so a professional schedule is realistic. Trainability scores 5 out of 5, which is a biddable score. Good with children scores 5 out of 5. Good with other dogs scores 3 out of 5. AKC ranked this breed number 96 in 2025.

Adult size is usually reached in up to 24 months (size-band statement (Salt et al. 2017): larger breeds require up to 24 months). AKC parent-club recommended health screenings: Hip Evaluation, Elbow Evaluation, Thyroid Evaluation, Polyneuropathy (Leonberger Type 2) (PN, LPN2) - DNA Test, Laryngeal Paralysis & Polyneuropathy (Leonberger Type 3) (LPPN3) - DNA Test, Ophthalmologist Exam (CERF), Leukoencephalomyelopathy (LEMP) - DNA Test, and Leonberger Polyneuropathy 1 (LPN1) - DNA Test. These are screening tests, not a list of diseases the breed is guaranteed to develop.