The Washington Original Jurisdiction of the Superior Court Amendment, also known as Substitute House Joint Resolution 4221, was on the November 5, 1991 ballot in Washington as a legislatively-referred constitutional amendment, where it was defeated. The measure would have removed "cases in equity" from the jurisdiction of the Superior Court, thus allowing other courts to address such cases. The measure would have amended Section 6 of Article IV of the Washington State Constitution.
| Washington Sub. HJR 4221 (1991)|
|Yes|| 584,815|| 48.82%|
Election results via: Washington Secretary of State
Text of measure
The language appeared on the ballot as:
||Shall the Constitution's description of the Superior Court's original jurisdiction be amended by deleting the reference to "cases in equity?"