Adams ex rel. Kasper v. School Board of St. Johns County, Florida is a court case from the United States Court of Appeals for the Eleventh Circuit addressing whether schools can separate bathrooms on the basis of biological sex, and thus refuse to allow transgender students to use bathrooms that match their gender identity. The case was filed by Erica Adams Kasper on behalf of Drew Adams, a minor at the time, against the school board of St. Johns County, Florida, in the United States District Court for the Middle District of Florida. The lawsuit was filed after Adams was denied access to the boys' bathrooms at Nease High School. Kasper claimed that Adams's rights were being violated on account of discriminated on the basis of sex, which is prohibited by Title IX of the Education Amendments of 1972, and a violation of the equal protection of the laws under the Fourteenth Amendment.