Seppo Aho

{{Short description|Finnish modern pentathlete (born 1944)}}

{{Use dmy dates|date=March 2025}}

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| name = Seppo Aho

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| nationality = Finnish

| birth_date = {{birth date and age|1944|3|7|df=yes}}

| birth_place = Pornainen, Finland

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| height = 174 cm

| weight = 70 kg

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| sport = Modern pentathlon

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Seppo Aho (born 7 March 1944) is a Finnish modern pentathlete. He competed at the 1968 Summer Olympics.{{cite web |url=https://www.sports-reference.com/olympics/athletes/ah/seppo-aho-1.html |archive-url=https://web.archive.org/web/20200417181123/https://www.sports-reference.com/olympics/athletes/ah/seppo-aho-1.html |url-status=dead |archive-date=2020-04-17 |title=Seppo Aho Olympic Results |accessdate=2012-08-15 |work=sports-reference.com}} At the 1968 Olympics he finished 18th in the individual event and 5th in the team event.