According to the search results, there are several religious holidays in 2023. Here are some of the major religious holidays in 2023:

• January 6: Feast of the Epiphany (Christian)
• January 7: Coptic Orthodox Christmas (Christian)
• February 22: Ash Wednesday (Christian)
• March 8: Holi (Hindu)
• April 9: Easter (Christian)
• September 15-17: Rosh Hashanah (Jewish)
• September 24-25: Yom Kippur (Jewish)
• November 12: Diwali (Hindu)

Please note that this is not an exhaustive list, and there may be other religious holidays celebrated in 2023.