Phoenix v. Kolodziejski, 399 U.S. 204 (1970), was a voting rights case decided by the United States Supreme Court in 1970.

The City of Phoenix held an election in June 1969, in which the issuance of general obligation bonds to finance various municipal improvements was approved.

Six days after the election, the U.S. Supreme Court held, in Cipriano v. City of Houma,[1] that restricting the franchise to property taxpayers in elections on revenue bonds violated the Equal Protection Clause.

In August 1969, Emily Kolodziejski, who owned no realty, challenged the franchise restriction and attacked the validity of the June election.

The Supreme Court unanimously affirmed, holding that the Equal Protection Clause prohibits states from restricting the franchise to real property taxpayers in elections to approve the issuance of general obligation bonds, as the differences between the interests of property owners and nonproperty owners are not sufficiently substantial to justify excluding the latter from voting.