Throughout the world, Olegário (Olegário 
) is a very rare boy's forename. The first name Olegário is characteristic of Southern Europe, particularly Portugal, where it is a rare masculine name. Also, Olegário is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Olegário | Portugal, Brazil, United States |
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olegário herculano de aquino e castro Brazilian politician (1828-1906), BR (b. 1828) |
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olegário maciel Brazilian politician (1855-1933), BR (b. 1855) |
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olegário mariano Brazilian writer and poet (1889-1958), BR (b. 1889) |
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| olegário pinto Brazilian lawyer and politician (1857-1944), BR (b. 1857) |
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olegário tolói de oliveira Brazilian footballer and manager, BR (b. 1939) |
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| olegário bernardes BR (b. 1883) |
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olegário benquerença Portuguese football referee, PT (b. 1969) |
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| olegário caetano porto person identified in the Museu da Pessoa collection, BR (b. 1932) |
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| olegário herculano da silva pinto politician |
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| olegário dos anjos estevão guilherme banze politician in Mozambique |
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| olegário de oxum |
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