|Type||Competed in Olympic Games|
|Full name||Léon Pierre•Nijs (Utterwulghe-)|
|Born||4 January 1890 in Antwerpen (Antwerp) (BEL)|
|Died||12 June 1939 in Antwerpen (Antwerp) (BEL)|
|Affiliations||AZC, Antwerpen (BEL)|
|1912 Summer Olympics||Water Polo (Aquatics)||Water Polo, Men||Olympic||Belgium||3||Bronze||Representing Belgium|
|1920 Summer Olympics||Water Polo (Aquatics)||Water Polo, Men||Olympic||Belgium||2||Silver||Representing Belgium|
May have died on 11th; newspaper sources state he died "Saturday night", after visiting a water polo match. Saturday was the 11th, but night suggests he died Sunday.