When Is Trinity Sunday in 2026?

Trinity Sunday in 2026 falls on Sunday, May 31, 2026.

Trinity Sunday is celebrated one week after Pentecost. Since Pentecost Sunday in 2026 falls on May 24, Trinity Sunday is observed on the following Sunday, May 31.

Trinity Sunday is the day when Christians give special attention to the mystery of the Holy Trinity: one God in three divine Persons, the Father, the Son, and the Holy Spirit. It reminds believers that Christianity is not built on a vague idea of God, but on the God who has revealed Himself as Father, Son, and Holy Spirit.

For Catholics, Trinity Sunday is also a day of Mass obligation because it falls on Sunday. Every Sunday is the Lord’s Day, and Catholics are expected to attend Mass unless they are prevented by a serious reason.

In short, Trinity Sunday 2026 is Sunday, May 31, 2026. It comes after Pentecost and focuses on the central Christian belief in the Holy Trinity.

For a related discussion, read our post, “Is Trinity Sunday a Holy Day of Obligation?”

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