A 75-year-old woman had taken a walk in a primeval forest in Sapporo one week before visiting our hospital. Six days later, she had found a tick on her nuchal region. We removed the tick and prescribed tetracycline hydrochloride at 1,000 mg/day for 10 days. The tick was identified morphologically as Ixodes pavlovskyi. This species ranges from Siberia to the Far East, including Hokkaido. This is the first case of a human bitten by Ixodes pavlovskyi in Japan.