Last name সিদ্দিকা (Siddiqa 
, Siddiqua , সিদ্দিকা ) , all over the world, is a common cognomen. The cognomen সিদ্দিকা is habitual in Bangladesh, where it is quite a common surname, United Arab Emirates, where it is quite a rare surname, and Pakistan. In absolute terms, it is commonest in Southern Asia, particularly Bangladesh, India, and Pakistan. Very seldom, সিদ্দিকা is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siddiqua, Siddiqa | United Arab Emirates, Bangladesh, India, Pakistan, Saudi Arabia |
| সিদ্দিকা | Bangladesh |
| মাহমুদা খাতুন সিদ্দিকা Bengali poet, BD (b. 1906) |
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| সিদ্দিকা কবীর chef, BD (b. 1931) |
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| সিদ্দিকা খানম BD |
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