Christians across the Emirates filed into churches and stood outside chapels to listen in to Christmas Eve and Christmas Day services.
Thousands gathered to celebrate the festive season and look ahead to the the New Year.
Services offered people an opportunity to reflect on a challenging 2023, not least the ongoing crisis in Gaza.
President Sheikh Mohamed on Monday sent a message of "peace and wellbeing" to Christians celebrating Christmas across the country and around the world.
He wished residents and their families well in a post on social media.
"To all those celebrating Christmas in the UAE and around the world, I wish you a blessed day. May this occasion usher in peace and wellbeing for you and your loved ones," he wrote on X.
Sheikh Abdullah bin Zayed, Minister of Foreign Affairs, also shared his warm wishes for those celebrating the holidays.
"Merry Christmas," he wrote on Monday.
About 1,500 people joined together to pray and attend festivities at St Mary's Catholic Church in Dubai on Monday morning.
Families took photos with the nativity scene outside the church, lit candles, sang hymns and prayed together.
The church – which is the largest in the emirate and was established in 1967 – is expecting tens of thousands to attend services over the festive period this week.
Residents also turned out in numbers to pray together at St Joseph's Cathedral in Abu Dhabi on Christmas Eve on Sunday night.
The church hosted a special outdoor midnight Mass where a choir dressed in red and black sang hymns during the ceremony.
Some worshippers lit candles, while others took in the nativity scenes and large decorated Christmas tree.
The place of worship is expecting a huge turnout this week, with more than 23 Masses in numerous languages to be held.
St Joseph's is one of the oldest churches in the Arabian Gulf. The first midnight Mass was held on December 24, 1964, and the church was consecrated the following year. Sheikh Shakbut, Ruler of Abu Dhabi at the time, attended the opening.
Archive photos from the 1960s show the church on the city's Corniche surrounded by nothing but sand, with a cross above the door.
Christmas in the UAE – in pictures
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Christmas Day church services at St Mary’s Catholic church. Antonie Robertson / The National -
Christmas Day church services at St Mary’s Catholic church. Antonie Robertson / The National -
Christmas Day church services at St Mary’s Catholic church. Antonie Robertson / The National -
Christmas Day church services at St Mary’s Catholic church. Antonie Robertson / The National -
Christmas Day church services at St Mary’s Catholic church. Antonie Robertson / The National -
Christmas Day church services at St Mary’s Catholic church. Antonie Robertson / The National -
Christmas Day church services at St Mary’s Catholic church. Antonie Robertson / The National -
Christians in the UAE gathered for the traditional Christmas Eve mass at St Joseph's Cathedral in Abu Dhabi. All photos: Victor Besa / The National -
Worshippers joined together to pray and a choir dressed in red and black sang hymns during the outdoor ceremony. -
Some of the congregation lit a candle, while others admired the nativity scene and large decorated Christmas tree. -
Christians in the Emirates united to celebrate the festive season and look ahead to the New Year. -
Services offered people an opportunity to reflect on a challenging 2023, not least the continuing crisis in Gaza. -
People turned out in force for the church's special outdoor midnight Mass on Christmas Eve. -
The first midnight Mass was held on December 24, 1964 at the church which was consecrated the following year. -
The masses of Christmas Eve were held from 8pm until midnight, followed by carol singing. -
On Christmas day, there will be as many as 22 masses in 13 languages from 4am to 8.30pm at St Joseph’s Cathedral. -
Services will be in Arabic, English, Ukrainian, Italian, French, Spanish, Korean, Tagalog, Urdu, Malayalam, Tamil, Konkani and Sinhala languages. -
Christmas eve mass at St. Joseph Cathedral in Abu Dhabi.
