[[Tasvir:Hippasus Metapontinus - Illustrium philosophorum et sapientum effigies ab eorum numistatibus extractae.png|thumb|Hippasus, Girolamo Olgiati rasmi [[1580-yil]]]]
'''Hippasus''' — ({{lang-grc|Ἵππασος ὁ Μεταποντῖνος}}, ''Híppasos''; t. m.a 530-yil — oʻ. m.a 450-yil)<ref>{{citeKitob bookmanbasi |last1=Huffman |first1=Carl A. |title=Philolaus of Croton: Pythagorean and Presocratic |url=https://archive.org/details/philolauscrotonp00phil_571 |date=1993 |publisher=Cambridge University Press |page=[https://archive.org/details/philolauscrotonp00phil_571/page/n27 8]}}</ref> [[Pifagor|Pifagorchi]] olim boʻlgan<ref>{{citeKitob bookmanbasi |author=Iamblichus |edition=1918 translation |title=The life of Pythagoras |year=1918 |url=https://archive.org/details/lifeofpythagoras00iamb |page=327}}</ref>. Uning hayoti yoki eʼtiqodlari haqida juda kam narsa maʼlum, ammo baʼzida u irratsional sonlarning mavjudligini kashf qilgan olim sifatida tan olinadi. Irratsional sonlarning kash qilinishi [[Pifagor|Pifagorchilarni]] hayron qoldiradi. U dengizda choʻkib oʻlgani haqida maʼlumotlar mavjud.