Gambling can harm those who gamble, as well as their friends and family. “Concerned significant others” (CSOs) are people in a close relationship with someone who gambles. This study looked at the wellbeing of CSOs in Australia and Canada. The researchers used data from the Household Income and Labour Dynamics in Australia Survey (HILDA). They also used data from the Quinte Longitudinal Survey (QLS) from Ontario, Canada. Overall, CSOs had lower wellbeing than participants who were not CSOs. But, the type of relationship between the CSO and the person who gambled did not seem to impact the wellbeing of the CSO.