In all the world, सिद्धार्थ (Siddharth 
, Siddhartha , Siddarth 
) is a widespread boy's forename. The first name सिद्धार्थ is characteristic of India, where it is quite a common boy's name, United Arab Emirates, where it is quite a rare boy's name, and Qatar. In absolute terms, it most frequently occurs in India, Bangladesh, and the United States. Much less frequently, सिद्धार्थ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Siddharth, Siddhartha | Nepal, Bangladesh, United States, India, United Arab Emirates |
| Siddarth | United States, India, Singapore, United Arab Emirates, Australia |
| सिद्धार्थ | India |
Siddhaartha, Сиддхартха, สิทธัตถะ, and シッダールタ
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सिद्धार्थ रॉय कपूर Indian businessman, IN (b. 1974) |
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सिद्धार्थ आनन्द Indian film director and writer, IN (b. 1978) |
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सिद्धार्थ Indian actor, IN (b. 1979) |
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सिद्धार्थ काक Indian film director, IN |
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सिद्धार्थ जाधव Indian film actor, IN (b. 1981) |
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सिद्धार्थ महादेवन Indian singer and composer, IN (b. 1993) |
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सिद्धार्थ निगम Indian actor, IN |
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| वी.जी. सिद्धार्थ Indian businessman, IN (b. 1959) |
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| सिद्धार्थ रे actor from India, IN (b. 1963) |
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| सिद्धार्थ नाथ सिंह Indian politician, IN (b. 1963) |
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| सिद्धार्थ अरोड़ा Indian actor, IN (b. 1988) |
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| सिद्धार्थ मेनन Indian actor, IN (b. 1989) |
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| सिद्धार्थ शंकर IN |
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| सिद्धार्थ कौल Indian cricketer, IN (b. 1990) |
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| कृष्णमूर्ति सिद्धार्थ Indian cricketer, IN (b. 1992) |
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