Dionicio Cerón

{{short description|Mexican long-distance runner}}

{{no footnotes|date=January 2019}}

{{family name hatnote|Cerón|Pizarro|lang=Spanish}}

{{Infobox sportsperson

| name =Dionicio Cerón

| image =

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| fullname = Dionicio Cerón Pizarro

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| nationality ={{flagcountry|MEX}}

| sport = Running

| event =10,000 metres
marathon

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| birth_date ={{birth date and age|1965|10|09|df=y}}

| birth_place =Toluca

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| height ={{convert|1.71|m|ftin}}

| weight ={{convert|54|kg|lb}}

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}}

Dionicio Cerón Pizarro (born October 9, 1965 in Toluca) is a former marathon runner from Mexico, whose personal best in the classic distance was 2:08:30. He represented his native country two times at the Summer Olympics: in 1992 and 1996. He also won the London Marathon three consecutive times between 1994 and 1996, the only man to have ever achieved this feat. Eliud Kipchoge, António Pinto and Martin Lel are the only other men to have won it three times or more, however not in consecutive years.