Maho Hanaoka (Japanese: ?? ??; born 3 August 1976) is a Japanese former track and field athlete who competed mainly in the long jump and triple jump.
She is one of Japan's best female athletes in the horizontal jumps: she holds the Japanese records for the triple jump outdoors with 14.04 m (46 ft 3/4 in) and is also the record holder in both the long and triple jump indoors.
Her long jump best of 6.82 m (22 ft 4 1/2 in) is a former Japanese record, second to Kumiko Ikeda.
Her greatest international performance was a long jump gold medal at the 2006 Asian Indoor Athletics Championships, where she set a championship record.
She was the long jump runner-up at the 2002 Asian Games and a three-time bronze medallist at the Asian Athletics Championships.
She won medal in both jumps at the 2001 East Asian Games.
At the global level Hanaoka represented Japan at the 2004 Olympic Games, the 2001 World Championships in Athletics, twice at the IAAF World Indoor Championships (1999 and 2006), and twice at the Summer Universiade (1995 and 1999).
At national level she was a five-time Japanese long jump champion and won five triple jump national titles.
In her career she won seven times in the jumps at the National Sports Festival of Japan.