Yup... there are two of them. Susannah Mushatt Jones (b. 6 July 1899) from the United States and Emma Morano (b. 29 November 1899) from Italy. The former will be 116 years old, in two weeks from now.
One interesting fact which I have noticed is that 20 out of the 45 oldest living people (as of now) are from Japan. What is the secret behind their longevity? Organic food? or better medical care?
According to this article, it's likely to be a mix of different factors at play - including food and medical care:
http://www.agewatch.org.uk/secrets-of-longevity/japanese-longevity/It is noteworthy that in Japan the highest rate of centenarians is on the island of Okinawa (22 centenarians per 100,000 inhabitants), being the highest in the world, save for one place only, the Italian island of Sardinia, where the rate is the same. But the total population of Sardinia (as of 2011) is 1,639,362, while the population of Okinawa is 1,301,462 (as of 2014). Thereby Sardinia has more centenarians than Okinawa in absolute strength...