杰纳扎诺（意大利语：Genazzano）是意大利拉齐奥大区罗马省的一个镇，面积32.04平方公里，人口5,823人（2007年）。

Genazzano is a town and comune in the province of Rome, located on a tuff spur at 375 metres (1,230 ft) above sea level that, starting from the Monti Prenestini, ends on the Sacco River valley.