Are you allowed to eat fish on Palm Sunday?

In the Catholic Church, fish may be eaten on any day of the year. Some Anglicans and Episcopalians choose to follow Roman Catholic fast and abstinence practices, so such people would presumably not avoid eating fish on religious grounds.

Eastern Orthodox Christians and Oriental Orthodox Christians generally have stricter fast and abstinence rules than Western Christians. Some of these Eastern Church have had abstinence rules may prohibit fish on certain days, including Palm Sunday, and some of them may continue to have these rules in force for their members. Individual Churches may follow abstinence rules that vary from one national church to another within the larger Orthodox Communion or Oriental Orthodox Communion, and the rules may change over time as well.