In a country where Christianity and Islam shape much of public life, Nigerians who reject belief in God remain a small but real and often misunderstood minority.
In Nigeria, asking someone about their religion is often as ordinary as asking where they work or which part of the country they are from. The expected answers are familiar: Christian, Muslim or, sometimes, traditional religion. But some Nigerians would answer differently. They do not believe in God. They may describe themselves as atheists, agnostics, humanists, secularists or simply people without a religion.
For them, the difficult part is not necessarily deciding what they believe. It is explaining that decision in a society where religion is deeply woven into family life, politics, education, marriage, language and everyday conversation.
Nigeria is intensely religious
Nigeria is one of the world’s most religiously diverse large countries, but Christianity and Islam dominate its religious landscape. Pew Research Centre estimates that in 2020, Muslims accounted for about 56.1 per cent of Nigeria’s population and Christians about 43.4 per cent. Other groups accounted for a small share.
Pew also notes that Nigeria’s last census effort to measure religion dates back to 1973, while the publicly available data from that exercise was not published because of allegations of data falsification. The planned 2023 census did not include any question on religion. That means there is no simple, current official figure showing exactly how many Nigerians are atheists. This is where the story becomes complicated. Not every Nigerian who does not belong to a church or mosque is necessarily an atheist.
Some may be agnostic. Others may describe themselves as spiritual but not religious. Some may have stopped participating in organised religion without adopting another identity. The categories matter.
What does atheist actually mean?
Atheism is generally understood as a lack of belief in God or gods. It does not automatically mean hatred of religion. It does not necessarily mean opposition to religious people. And it does not tell us how a person behaves, what moral principles they hold or whether they believe in kindness, responsibility, family or community.
Those distinctions are often lost in everyday discussions. Pew Research Centre, for example, groups atheists, agnostics and people who say they have no particular religion under the broader category of the religiously unaffiliated.
But even within that category, people’s beliefs can be different. An atheist may reject belief in God. An agnostic may say that they do not know whether God exists. Someone who describes themselves as having “nothing in particular” may simply not identify with a religion. They are not interchangeable.
A small presence that is difficult to measure
Research into Nigerian attitudes towards religion suggests that atheism exists, even if it remains a minority position. A 2025 academic study examining religious orientation in Nigeria between 1990 and 2022 found that 1.1 per cent of respondents in the periods examined identified as atheist. The researchers also identified larger shares of people who described themselves as non-religious or said religion was not important to them at particular points in the survey data.
The figures should not be treated as a definitive national count. They are evidence from survey data, not a national census. That distinction is important in a country where religious affiliation has historically been sensitive and where reliable national data on atheism remains limited.
Still, the research makes one thing clear. Atheism is not absent from Nigerian society.
Why some people keep it private
For an atheist in Nigeria, revealing a lack of belief can have consequences beyond a theological disagreement. Religion is often closely connected to family identity. Parents may expect their children to attend church or mosque. Religious ceremonies can be central to marriage and naming ceremonies.
Workplaces can have strong religious cultures. Friendships can be built around shared faith. In such an environment, announcing that one no longer believes in God can feel less like revealing a private philosophical position and more like challenging an important part of one’s social identity. This is one reason some non-believers may choose not to disclose their views publicly.
Earlier reporting by Al Jazeera documented Nigerian atheists who kept their beliefs private and used online groups and pseudonyms to discuss atheism. The existence of private communities also points to another reality: people can question religion even in highly religious societies. They may do so quietly.
From questioning to atheism
People arrive at atheism through different paths. For some, it begins with questions about religious teachings. For others, it follows years of reading philosophy, science or comparative religion. Some people grow up in religious homes and gradually stop believing.
Others may have been raised without strong religious commitment. There is no single atheist experience. And there is no universal moment when someone becomes an atheist. That diversity is important because public conversations about atheism often assume that every atheist has rejected religion for the same reason. They have not.
The family question
Perhaps one of the most difficult areas for Nigerian atheists is family. Religion can influence expectations about marriage, children and relationships between generations. A parent may see religious belief as part of good upbringing.
A child may see it as a personal choice. That difference can create tension. The disagreement is unnecessarily about whether one person is intelligent and the other is not. It may be about identity. For a deeply religious parent, a child’s rejection of religion can feel like a rejection of family values.
For an atheist, being expected to practise a religion they do not believe in can feel equally difficult. The result can be silence, compromise or conflict.
Is atheism the same as immorality?
One of the most persistent assumptions about atheism is that people cannot be moral without religion. That argument has existed for centuries. But atheism itself does not provide a single moral system. An atheist can develop ethical principles through philosophy, humanism, personal values, social responsibility or other frameworks.
Similarly, religious belief does not automatically make someone morally good. The question of morality is therefore much larger than the question of whether someone believes in God. Yet in everyday Nigerian conversation, the two are often connected.
A person who says “I don’t believe in God” may immediately be asked: “Then what stops you from doing evil?” That question reveals how strongly morality and religion are connected in popular thinking.
The legal question
Nigeria’s Constitution provides for freedom of thought, conscience and religion. But the practical environment around religious expression is complicated. The National Human Rights Commission has described freedom of religion and belief as a fundamental human right while also reporting concerns about religious discrimination and intolerance. Additional complexities around blasphemy laws exist.
The United States Commission on International Religious Freedom has reported that Nigeria’s federal and some state governments enforce blasphemy laws, including laws that can affect people accused of insulting religion. Its reports have also highlighted cases involving humanists and other non-religious people.
This makes freedom of belief more complicated than simply asking whether someone is legally allowed to have an opinion. The question is also whether people can express that opinion without facing discrimination, threats or other consequences.
Atheism and the internet
The internet has changed this conversation. A person who feels isolated in their immediate environment can find others with similar questions online. Social media, discussion forums, podcasts and video platforms have made it easier to encounter arguments about religion from different perspectives.
For Nigerian atheists, this can provide something that may be difficult to find offline: community. But the internet can also make the conversation more hostile. Religious debates can quickly become personal. A disagreement over belief can turn into insults or accusations. That can encourage people to hide their views rather than discuss them openly.
The changing conversation
Nigeria remains overwhelmingly shaped by religion. Churches and mosques occupy important places in communities. Religious leaders have considerable influence. Prayer is part of public life. Religious language appears regularly in politics, business and everyday conversation.
Against that background, atheism may appear unusual. But unusual does not mean nonexistent. Recent scholarship, survey research and the experiences documented by non-religious Nigerians all point to a small but real presence.
The difficulty is knowing exactly how large that presence is. Without reliable, current national data, claims about the number of Nigerian atheists should be treated cautiously. The more useful question is not how many there are. It is whether Nigerian society can accommodate people who believe differently — including those who believe in no god at all.
For a country as religiously diverse as Nigeria, tolerance does not have to mean agreement. It can mean recognising that belief, non-belief and uncertainty are all part of the human experience. And somewhere between the crowded churches, busy mosques and private conversations taking place online, there are Nigerians quietly asking a question that many around them may never expect to hear: What if I don’t believe?