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The aim of this study was to assess trends in the age‐specific incidence of vulvar cancer in 13 high‐income countries satisfying a priori conditions regarding the availability of cancer registry data over a 20‐year period; these were Canada, the United States, nine European countries, Australia and Japan. Five‐yearly incidence and population at risk were obtained from the International Agency for Research on Cancer's Cancer Incidence in Five Continents for the years 1988–1992 (Volume 7) to 2003–2007 (Volume 10). The 5‐yearly average percent change (AvPC) over the period and standardised rate ratios (SRRs) for 2003–2007 versus 1988–1992 were used to assess changes in the age‐standardised incidence rates of vulvar cancer for all ages, and for <60 years and 60+ years. During the study period, the 5‐yearly AvPC across the 13 countries increased by 4.6% (p = 0.005) in women of all ages, and 11.6 …