| 6811 | January 15 | Death | 2012 – Samuel Jaskilka, American general (b. 1919) |
| 6812 | January 15 | Death | 2012 – Ib Spang Olsen, Danish author and illustrator (b. 1921) |
| 6813 | January 15 | Death | 2012 – Hulett C. Smith, American lieutenant and politician, 27th Governor of West Virginia (b. 1918) |
| 6814 | January 15 | Death | 2013 – Generous, Irish horse (b. 1988) |
| 6815 | January 15 | Death | 2013 – Chucho Castillo, Mexican boxer (b. 1944) |
| 6816 | January 15 | Death | 2013 – Daniel Edelman, American publicist, founded Edelman (b. 1920) |
| 6817 | January 15 | Death | 2013 – Princess Margarita of Baden (b. 1932) |
| 6818 | January 15 | Death | 2013 – Nagisa Oshima, Japanese director and screenwriter (b. 1932) |
| 6819 | January 15 | Death | 2013 – John Thomas, American high jumper (b. 1941) |
| 6820 | January 15 | Death | 2013 – Yuli Turovsky, Russian-Canadian cellist, conductor, and educator (b. 1939) |
| 6821 | January 15 | Death | 2014 – Curtis Bray, American football player and coach (b. 1970) |
| 6822 | January 15 | Death | 2014 – Namdeo Dhasal, Indian poet and activist (b. 1949) |
| 6823 | January 15 | Death | 2014 – John Dobson, Chinese-American astronomer and author (b. 1915) |
| 6824 | January 15 | Death | 2014 – Roger Lloyd-Pack, English actor (b. 1944) |
| 6825 | January 15 | Death | 2014 – Maya Romanoff, American interior designer (b. 1941) |
| 6826 | January 15 | Death | 2015 – Ervin Drake, American songwriter and composer (b. 1919) |
| 6827 | January 15 | Death | 2015 – Kim Fowley, American singer-songwriter, producer, and manager (b. 1939) |
| 6828 | January 15 | Death | 2015 – Ethel Lang, English super-centenarian (b. 1900) |
| 6829 | January 15 | Death | 2015 – Ray Nagel, American football player and coach (b. 1927) |
| 6830 | January 15 | Death | 2015 – Chikao Ōtsuka, Japanese voice actor (b. 1929) |
| 6831 | January 15 | Holiday and observance | Armed Forces Day (Nigeria) |
| 6832 | January 15 | Holiday and observance | Army Day (India) |
| 6833 | January 15 | Holiday and observance | Christian feast day:Abeluzius (Ethiopian Orthodox Tewahedo Church)Arnold JanssenFrancis Ferdinand de Capillas (one of Martyr Saints of China)ItaMacarius of Egypt (Western Christianity)Paul the HermitJanuary 15 (Eastern Orthodox liturgics) |
| 6834 | January 15 | Holiday and observance | Earliest day on which International Fetish Day can fall, while January 21 is the latest celebrated on the third Friday in January. |
| 6835 | January 15 | Holiday and observance | Earliest day on which Martin Luther King, Jr. Day can fall, while January 21 is the latest celebrated on the third Monday in January. (United States) |
| 6836 | January 15 | Holiday and observance | John Chilembwe Day (Malawi) |
| 6837 | January 15 | Holiday and observance | Korean Alphabet Day (North Korea) |
| 6838 | January 15 | Holiday and observance | One of the two Carmentalia, in honor of Carmenta. (Roman Empire) |
| 6839 | January 15 | Holiday and observance | The second day of the sidereal winter solstice festivals in India (see January 14):Maatu Pongal, celebrated by performing Jallikattu (Tamil) |
| 6840 | January 15 | Holiday and observance | Tree Planting Day (Egypt) |