Men supercentenarians

Emiliano Mercado del Toro (August 21, 1891 – January 24, 2007) was a Puerto Rican supercentenarian and military veteran who was, at age 115, the world's oldest person following the death of 116-year-old Elizabeth Bolden on December 11, 2006, and the world's oldest man from November 19, 2004 (death of Fred H. Hale, Sr.) until his own death on January 24, 2007.At the time of his death in January 2007, aged 115 years and 156 days, Mercado was the second oldest fully validated male ever, behind Danish-American Christian Mortensen's record of 115 years 252 days. (Although Shigechiyo Izumi was still believed to be older at the time of his death. Izumi's record was withdrawn by Guinness World Records in 2010.)

Maurice Noël Floquet (25 December 1894 – 10 November 2006) was, aged 111 and 320 days, France's oldest man on record and was one of the last surviving French veterans of World War I. He is also France's longest-lived soldier of all time.

Alexander Herbert Imich (February 4, 1903 – June 8, 2014) was a Polish-American chemist, parapsychologist, zoologist and writer who was the president of the Anomalous Phenomena Research Center in New York City. He was born in 1903 in Częstochowa, Poland (then part of the Russian Empire) to a Jewish family.
Imich, a supercentenarian, also became the oldest living man at age 111 after the death of almost 112-year-old Arturo Licata, of Italy, on April 24, 2014. Until his own death a little more than a month later, aged 111 years and 124 days, Imich was certified by Guinness World Records as the world's oldest living man.
Imich was also the last surviving veteran of the Polish-Soviet War.

Lazare Ponticelli (born Lazzaro Ponticelli; 24 December 1897, later mistranscribed as 7 December – 12 March 2008), Knight of Vittorio Veneto, was at 110, the last surviving officially recognized veteran of the First World War from France and the last poilu of its trenches to die.Born in Italy, he travelled on his own to France at the age of eight. Aged 16, he lied about his age in order to join the French Army at the start of the war in 1914, before being transferred against his will to the Italian Army the following year. After the war, he came back to Paris where he and his brothers founded the piping and metal work company Ponticelli Frères (Ponticelli Brothers), which produced supplies for the Second World War effort and as of 2023 is still in business. He also worked with the French Resistance against the Nazis.
Ponticelli was the oldest living man of Italian birth and the oldest man living in France at the time of his death. Every Armistice Day until 2007 he attended ceremonies honoring deceased veterans. In his later years, he criticized war, and stored his awards from the First World War in a shoe box. While he felt unworthy of the state funeral the French government offered him, he eventually accepted one. However, he asked that the procession emphasise the common soldiers who died on the battlefield. French president Nicolas Sarkozy honored his wish and dedicated a plaque to them at the procession.