This study describes the prevalence and characteristics of self-reported unintentional injuries among Canadians aged 55 years and older. Based on the cross-sectional data from the 1994 National Population Health Survey (NPHS), approximately 10 per cent of older adults experienced unintentional injuries serious enough to limit their normal daily activities. Consistent with hospitalization and mortality data, unintentional falls and motor vehicle crashes were reported as the major causes of injury. However, the other predominant causes of unintentional injuries were environmental incidents and being struck by an object. The most common types of injuries were sprains/strains and broken/fractured bones; the greatest number of injuries was to the lower limbs; and the majority of injuries occurred in the home and surrounding area. Unintentional injuries represent a significant health threat among older adults. Self-reported data serve as a different but complementary source of information on unintentional injuries among older adults.