Purpose <p>Although the association between heavy drinking and intimate partner violence is well-documented, the characteristics of those affected and those responsible for harm, the diverse harms experienced, and changes over time remain underexplored. This paper addresses these gaps in an Australian context.</p> Methods <p>We analyzed data from the 2008 (<i>n</i> = 2,649) and 2021 (<i>n</i> = 2,574) Australian Alcohol’s Harm to Others (AHTO) surveys, estimating the gender-stratified prevalence of alcohol-related intimate partner harm. A sub-sample of 373 participants who reported harm from a heavy-drinking intimate partner was examined.</p> Results <p>In 2021, 8.0% of women and 3.8% of men (5.9% overall) reported past-year harm from a heavy-drinking partner, significantly lower than in 2008 (10.6% women, 5.3% men, 8.0% overall). Harms included physical harm, harassment, social problems and unmet obligations due to a partner’s drinking. In the combined survey sample, women (OR: 2.3, 95% CI: 1.6, 3.1), younger individuals, and those who reported frequent own heavy episodic drinking had significantly higher odds of being negatively affected.</p> Conclusions <p>Heavy drinking continues to impact intimate partners. These findings highlight the need for gender-informed interventions that reduce men’s heavy drinking and better support women affected by alcohol-related intimate partner harm.</p>