Ivan Hausen
Ivan Zanoni Hausen was a Brazilian track and field athlete who competed at the 1948 [Summer Olympics] in the Athletics at the [1948 Summer Olympics – Men's 100 metres|100 metres], Athletics at the [1948 Summer Olympics – Men's 200 metres|200 metres] and Athletics at the 1948 Summer [Olympics – Men's 4 × 100 metres relay|4 x 100 metres relay].