New York saw a million people converge on Times Square to watch the famous ball descend.
While on Rio's famous Copacabana beach, spectators gathered to watch a spectacular firework display.
After enjoying fireworks and parties, attention often turns to New Year resolutions. Here are some of the resolutions you have made for 2016.
John Fox on Twitter has four things he wants to achieve in 2016...
Thomas White's resolution didn't last very long. He tweeted: "I resolved not to sleep for a full year, lasted 27 minutes."
Jane Hancock has a cynical take on New Year's resolutions:
Evgueni Krylov tells us his very common resolution: "Just to give up smoking. Hope I'll succeed this year."
Brandon Griffin has an alternative resolution:
Paul tweets: "Meeting more friends and successfully pass my first exams at university!" We wish him luck.
Terri Brown is looking to the future and tells us:
Is tolu tweets: "Want to have a better paid job, a house of my own and a side business that would be very lucrative."
While Half Blood Prince plans to be more spiritual:
Halfway Creations sets goals for the year ahead:
While Karim's resolution is more realistic: "Eat less #chocolate But who am I kidding?"
Norma Murray hopes to get running:
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Crowds across the world have welcomed the arrival of 2016.