In the world, সাইদুল (সাইদুল 
) is a rare male first name. The first name সাইদুল is habitual in Southern Asia, particularly Bangladesh, where it is a rare masculine name. Very seldom, সাইদুল is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| সাইদুল | Bangladesh |
| সাইদুল আনাম টুটুল Bangladeshi drama and film director (died 2018), BD (b. 1950) |
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| সাইদুল আলম Bir Protik Recipient, BD |
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| সাইদুল হক Bir Protik Recipient, BD |
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