There is a need to develop nonpharmacological treatments and methods which can serve as alternatives or complements to medications in dementia care. Previous research indicates that animal-assisted intervention (AAI) can be beneficial. The purpose of the present pilot project was to evaluate effects of AAI on quality of life (QoL) in people with dementia in four Swedish nursing homes. A pretest/posttest research design was used. Twenty people (12 women, 8 men; aged 58 to 88) were included. Nine people completed the intervention which comprised 10 training sessions with a certified therapy dog team. QoL improved in the expected direction after the intervention (p = .035). Even though the effects of AAI may not be discernible over longer periods of time, there are still immediate effects which can promote better QoL for people living with dementia diseases.