Last name صدیق (Siddiq 
, صدیق 
, Sadigh 
) , around the world, is a common cognomen. The family name صدیق is habitual in Bahrain, where it is quite a common surname, United Arab Emirates, and Pakistan (explore the name in all countries). Not in comparison with a country's population, it is commonest in Pakistan, India, and Indonesia. Likewise, صدیق is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Siddiq | Pakistan, Indonesia, Saudi Arabia, India, Bangladesh |
| صدیق | Egypt, Sudan, Afghanistan, Iraq, Saudi Arabia |
| Sadigh | Malaysia, United Kingdom, United States, India, Iran |
| Seddigh | Nigeria, United Kingdom, United States, United Arab Emirates, Iran |
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عیسی صدیق Iranian writer and politician, IR (b. 1894) |
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حسین محمدزاده صدیق Iranian Azeri literary scholar, translator and poet, IR (b. 1945) |
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هوشنگ صدیق Commander of Islamic Republic of Iran Air Force, IR (b. 1947) |
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امیرحسین صدیق Iranian actor, IR (b. 1972) |
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لاله صدیق Iranian racing driver, IR (b. 1977) |
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| نجمہ صدیق Pakistani journalist, feminist, human rights activist, PK (b. 1945) |
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| علی خاکی صدیق IR (b. 1962) |
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| صبیحہ صدیق Azad Kashmir politician, PK |
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| محمد صدیق Businessman and Great-grandfather of Maqbool Hassan, PK |
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| راجہ محمد صدیق Azad Kashmir politician, PK |
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| عارفہ صدیق Pakistani politician and human rights activist, PK (b. 1987) |
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| غزالہ صدیق Pakistani badminton player, PK (b. 1994) |
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