Animal shelters can be stress-inducing environments for dogs because of the noise, social isolation and unpredictable housing (Hennessy et al., 2020). Dog enthusiasts and researchers alike have found that social interaction can help alleviate stress in dogs. The aim of this study was to understand dogs’ interaction preferences to improve their welfare in animal shelters. We hypothesized that there would be statistically significant differences between both the time dogs spent in dog-dog and dog-human interactions. The dogs’ interaction preferences were operationalized as the percentage of their play time they spent in dog-dog, dog-human and dog-environment interactions. A total of twelve dogs from the Animal Humane Society (AHS) in Golden Valley, Minnesota shelter participated as subjects in the study. The study ran for two weeks, and there were 2 sessions of 15 minute playgroups recorded at 9:00 AM, 11:40 AM and 2:20 PM. Each playgroup consisted of two to four dogs. We found statistically significant differences between the percentage of each dog’s individual time they spent in dog-human interactions, which is supported by the literature. Differences between the percentage of each dog’s time in dog-dog interactions were nearly, but not quite statistically significant. Further research is needed to determine if age, size and breed contribute to the dog’s interaction preferences. More research is also needed to determine whether individual differences in preference for dog-dog interaction exist between dogs, and how this knowledge can be applied to improve dogs’ welfare in shelters. Our research suggests that shelters should continue to provide dogs with play time to interact with humans, as it is helpful in alleviating the impact of environmental stressors.