The spelling "Sukarno" is frequently used in English as it is based on the newer official spelling in Indonesia since 1947 but the older spelling Soekarno, based on Dutch orthography, is still frequently used, mainly because he signed his name in the old spelling. Official Indonesian presidential decrees from the period 1947–1968, however, printed his name using the 1947 spelling. The Soekarno–Hatta International Airport which serves near Jak`rta, the capital of Indonesia for example, still uses the older spelling.
Indonesians also remember him as Bung Karno or Pak Karno. Like many Javanese people, he had only one name; in religious contexts, he was occasionally referred to as "Achmed Sukarno".The name Soekarno means "Good Karna" in Javanese.
Sukarno married Siti Oetari in 1920, and divorced her in 1923 to marry Inggit Garnasih, whom he divorced c. 1943 to marry Fatmawati. Sukarno also married Hartini in 1954, after which he and Fatmawati separated without divorcing. In 1959 he married a third wife, the then 19-year old Japanese hostess Naoko Nemoto (renamed Dewi Sukarno). In the early 1960s, Sukarno went on to marry 4 more wives: Kartini Manoppo; Yurike Sanger; Heldy Djafar; Amelia de la Rama.
Megawati Sukarnoputri, who served as the fifth president of Indonesia, is his daughter by his wife Fatmawati. Her younger brother Guruh Sukarnoputra (born 1953) has inherited Sukarno's artistic bent and is a choreographer and songwriter, who made a movie Untukmu, Indonesiaku (For You, My Indonesia) about Indonesian culture. He is also a member of the Indonesian People's Representative Council for Megawati's Indonesian Democratic Party – Struggle. His siblings Guntur Sukarnoputra, Rachmawati Sukarnoputri and Sukmawati Sukarnoputri have all been active in politics. Sukarno had a daughter named Kartika by Dewi Sukarno. In 2006 Kartika Sukarno married Frits Seegers, the Netherlands-born chief executive officer of the Barclays Global Retail and Commercial Bank. Other offspring include Taufan and Bayu by his wife Hartini, and a son named Toto Suryawan Soekarnoputra (born 1967, in Germany), by his wife Kartini Manoppo.
adapted from : http://en.wikipedia.org/wiki/Soekarno