Across the world, Jackline (Jackline 
) is a common girly forename. The first name Jackline is habitual in Tanzania, where it is a common feminine name, Kenya, where it is quite a rare female name, and Lebanon. In absolute terms, it most frequently occurs in Tanzania, Kenya, and Brazil. Much less frequently, Jackline is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Jackline | Kenya, Ghana, Uganda, Tanzania, Brazil |
| jackline jerotich chebor Kenyan athletics competitor, KE (b. 1970) |
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| jackline maranga Kenyan distance runner, KE (b. 1977) |
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| jackline torori Kenyan athletics competitor, KE (b. 1978) |
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| jackline barasa volleyball player, KE (b. 1979) |
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| jackline joel jago South Sudanese politician |
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| jackline oluoch-aridi researcher ORCID ID = 0000-0002-8456-6735 |
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| jackline joy lasola researcher |
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| jackline adut deng juach South Sudanese politician |
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| jackline benjamin lado South Sudanese politician |
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| jackline mathew gaza South Sudanese politician |
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| jackline odhiambo researcher (ORCID 0000-0003-0028-9900) |
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| jackline ayres-silva researcher |
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| jackline freitas brilhante de são josé researcher |
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| jackline namulema researcher |
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| jackline mrema researcher |
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Swai, Soares, Araujo, Akinyi, Atieno, Kimaro, Joseph, Julius, Otieno, Wambui, Wilson, Massawe, Michael, Muthoni, Almeida, Charles, Pereira, Ribeiro, Wanjiru, Carvalho, Ferreira, Oliveira, Santos, Mwangi, Mollel, Masawe, Lema, Lima, John, Urio, Maina, Mosha, Minja, Mushi, Mrema, Sanga, Rodrigues, Shayo, Sousa, Souza, Alves, Costa, Kessy, Peter, Gomes, Lyimo, James, Njeri, Silva, and Nascimento