No — a Muslim should not say "Merry Christmas." The scholars are explicit that congratulating non-Muslims on their religious festivals is forbidden, and Ibn al-Qayyim states that this is agreed upon (haram bil-ittifaq). The greeting is not a courtesy; it is an endorsement of the festival itself.
Why the greeting is forbidden
The prohibition rests on what the greeting is, not merely on how it feels. Congratulating someone on a festival is a form of honouring that festival, and honouring the religious symbols of disbelief is itself the wrong being ruled on.
Ibn al-Qayyim's statement, quoted by Shaykh Ibn Uthaymeen, is the clearest formulation:
"As for congratulating them on the rituals of disbelief that are specific to them, it is forbidden by agreement — such as congratulating them on their festivals and their fast, saying 'a blessed festival to you' or 'may you be blessed by this festival' and the like. If the one who says it escapes disbelief, it is still among the forbidden things, and it is like congratulating him on his prostration to the cross."— Ibn al-Qayyim, Ahkam Ahl al-Dhimmah, quoted by Shaykh Ibn Uthaymeen
The Permanent Committee gave the same ruling and the reasoning behind it: the greeting involves cooperation in sin, and it signals affection and approval toward the festival and those who observe it. They cited Allah's words:
"And do not cooperate in sin and aggression."— Qur'an 5:2
Shaykh Ibn Uthaymeen added a second ground: participating in or endorsing their festivals implies approval of the religion they belong to, and that is not something a Muslim can express.
The principle behind it
The scholars treat the festivals themselves as part of the religion, not as neutral culture. IslamWeb (fatwa 43067) explains that festivals are "part of the law and the way," and quotes the hadith of Anas ibn Malik رضي الله عنه:
"The Messenger of Allah ﷺ came to Madinah and they had two days on which they would play. He said: 'What are these two days?' They said: 'We used to play on them in the pre-Islamic era.' He said: 'Allah has replaced them for you with something better: the day of al-Adha and the day of al-Fitr.'"— Abu Dawud 1134
If the festivals are a matter of revealed law, then greeting someone on a festival that Islam did not legislate is not a small social gesture — it is treating a non-Islamic religious occasion as worthy of honour.
What this covers
- Saying "Merry Christmas" or "Happy Christmas": covered directly. It is congratulation on a festival, which is the exact case Ibn al-Qayyim names.
- "Season's greetings," "Happy holidays" and similar: the same ruling applies, because the operative factor is congratulating on the festival, not the particular wording used.
- Congratulating on non-religious occasions: this is a different matter. IslamWeb (fatwa 95903) notes that a Muslim's supplication for his brother and his wishing him well is beneficial in itself when it is free of any festival form — the prohibition attaches to the religious festival, not to every kind word.
- Returning the greeting if they greet you first: the scholars do not permit initiating the greeting, and the general principle of returning a greeting does not license returning this one, because the greeting itself is the forbidden act.
In practice
- Do not initiate it. Whether at work, at a shop, or to a neighbour, the greeting is the act being ruled on, and it is not permitted.
- Do not return it in kind. A polite acknowledgement without the festival greeting keeps the relationship intact without endorsing the occasion.
- You can still be a good neighbour. Kindness, gifts outside the festival context, and normal courtesy are not affected. The prohibition is specific to honouring the religious festival.
- If pressed, be brief and warm. You do not owe anyone a lecture. A simple "I don't celebrate it, but I wish you well" is honest and does not require you to explain the fiqh.
Key takeaways
- Saying "Merry Christmas" is forbidden by agreement according to Ibn al-Qayyim, because it is congratulation on a religious festival.
- The prohibition is based on cooperation in sin and on signalling approval of the festival, not on rudeness or hostility.
- Alternative phrasings like "Happy holidays" carry the same ruling, since the operative factor is the congratulation, not the words.
- Ordinary kindness, neighbourliness and well-wishing outside a religious festival are not affected.
- The Permanent Committee and Shaykh Ibn Uthaymeen both state this ruling; it is not a matter of legitimate disagreement among the scholars.
And Allah knows best.
Sources6
This is a guide to what the scholars have said, not a fatwa. For your own situation, ask a qualified scholar who can hear the details.