Throughout the world, Joannah (Joannah 
) is quite a rare feminine forename. The first name Joannah is characteristic of Philippines, where it is a rare feminine name, Australia, and the United Kingdom. Not in comparison with a country's population, it is commonest in Philippines, the United States, and the United Kingdom. Much less frequently, Joannah is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Joannah | Philippines, United States, Zimbabwe, Nigeria, Uganda |
| joannah stutchbury Kenyan environmental activist, KE (b. 1954) |
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| joannah r fergusson researcher |
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| joannah tincey British actress, GB |
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| joannah elizabeth kafer Peerage person ID=485617 (b. 1984) |
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| joannah ruth fergusson (born 1989) (b. 1989) |
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| joannah cooke |
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| joannah welles |
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Kim, Cooper, Bishop, Garcia, Landry, Taylor, Hendon, Hudson, Malunes, Mingucci, Swanson, Johnson, Ng Mein Nah, Connolly, Reynolds, Richards, Gonzales, Thompson, Williams, Dickerson, Harbinson, Sidebottom, Conlan, Sparks, Morgan, Haley, Lee, Lim, Fox, Chan, Cook, Bell, Rice, Ruth, Hill, Isip, Robertshaw, Sison, Allen, Adams, Clark, Kelly, Reyes, Davis, Glass, Lewis, Jones, Nunez, Smith, and Hillebrandt