Cognomen Cojuangco (ジュニア 
, Cojuangco 
) , around the globe, is a rare last name. The family name Cojuangco is characteristic of Philippines, where it is a rare surname, Japan, and New Zealand, where it is a very rare surname. In absolute terms, it is the most numerous in Philippines, Japan, and the United States. Likewise, Cojuangco is the forename as well as the last name.
| VARIANT | COUNTRY |
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| ジュニア | Japan |
| Cojuangco | Canada, Philippines, New Zealand, United States, Malaysia |
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ramon cojuangco PH (b. 1924) |
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jose cojuangco, jr. Philippine politician, PH (b. 1934) |
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| josé cojuangco former Representative of the 1st district of Tarlac in the Philippines (1896-1976), PH (b. 1896) |
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| eduardo cojuangco (1902-1952) (b. 1902) |
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| juan "itoy" chichioco cojuangco (b. 1898) |
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| antonio cojuangco (b. 1899) |
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carlos cojuangco Philippine politician, PH (b. 1963) |
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| eduardo cojuangco, jr. Filipino politician, PH (b. 1935) |
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| tingting cojuangco Filipino politician, philanthropist, and socialite, PH (b. 1944) |
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| eduardo cojuangco (b. 1935) |
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| mark cojuangco Filipino politician, PH (b. 1957) |
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| antonio ongsiako cojuangco (b. 1951) |
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| denise cojuangco equestrian, PH (b. 1961) |
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| melencio estrella cojuangco (1871-1909) |
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| josé cojuangco migrated from Hongjian Village, Jiaomei Township, Zhangzhou, Fujian to the Spanish East Indies in 1861. |
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Ai, Sandy, Anton, Addie, Ai-Ai, Chris, Carlo, Karlo, Paolo, Perry, Pedro, Ramon, Rosie, Roilo, Resty, Reham, Delia, Dante, Grace, Leila, Janet, James, Maria, Zner, Ivee, Eric, Mai, Bea, Rah, Roi, Gay, Leo, Lea, Liz, Lia, Luz, Jojie, Mary, Mela, Romy, Rene, Ruby, Dina, Liza, Luis, Lulu, Jade, Jean, Mark, and Jepoy