Is the United Nations still relevant?
This is a question of opinion and ongoing debate rather than a simple factual matter, so I'll give you a balanced overview of the main arguments rather than a definitive verdict.
Arguments that the UN remains relevant
It's still the only truly universal forum. With 193 member states, it's the one place where virtually every country on Earth can engage diplomatically, even rivals who have no other channels of communication.
Humanitarian and development work continues at scale. Agencies like UNHCR (refugees), WFP (food aid), UNICEF (children), and WHO (health) operate in nearly every crisis zone on the planet, often as the only international presence helping vulnerable populations.
Peacekeeping, despite flaws, still functions. UN peacekeepers remain deployed in multiple conflict zones, and while missions have been criticized for failures (Rwanda, Srebrenica, and more recently difficulties in places like Mali and the DRC), they also provide stabilizing presence where no other actor is willing or able to intervene.
It sets global norms and standards. Frameworks like the Sustainable Development Goals, international law conventions, climate agreements (negotiated through UN processes), and human rights mechanisms still shape how states and institutions behave, even imperfectly.
No alternative institution has replaced it. Despite criticism, no other body has the legitimacy or universal membership to take over its core functions.
Arguments that its relevance is in serious question
Security Council paralysis. The veto power held by the US, Russia, China, UK, and France has repeatedly blocked action on major crises—Syria, Ukraine, and others—leading many to argue the Council reflects a 1945 power structure, not today's world.
Financial and political strain. The UN has faced significant budget pressures and funding cuts in recent years, which have forced reductions in staff and programs.
Credibility problems. Critics point to human rights bodies including states with poor human rights records, ongoing allegations of peacekeeper misconduct, and general bureaucratic inefficiency as evidence the institution struggles to live up to its mandate.
Great power rivalry has returned. Rising tensions between the US, China, and Russia have made UN-brokered consensus harder to achieve on nearly every major geopolitical issue.
Bottom line
Most analysts would say the UN is relevant but constrained—indispensable for humanitarian work, international law, and as a diplomatic meeting ground, but structurally hampered when it comes to resolving the world's biggest security crises. Whether you call that "relevant" often depends on which function of the UN you're evaluating: its humanitarian/development arm tends to get higher marks than its security/peacekeeping arm.
Would you like me to look into a specific aspect—like recent reform debates, a particular crisis response, or funding issues—in more depth with current information?