In the world, রেজাউল (Rezaul 
, রেজাউল ) is a common boy's first name. The first name রেজাউল is characteristic of Bangladesh, where it is quite a common male name, Oman, where it is quite a common primarily masculine, but very infrequently feminine name, and Qatar, where it is quite a rare male name. Measured by absolute frequency, it is the most numerous in Bangladesh, India, and Saudi Arabia. Much less frequently, রেজাউল is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rezaul | Saudi Arabia, United Arab Emirates, Bangladesh, India, Oman |
| রেজাউল | Bangladesh |
| রেজাউল করিম হীরা Ministry of Land, BD (b. 1942) |
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| রেজাউল করিম বাবলু Bangladeshi politician, BD (b. 1962) |
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| রেজাউল হাসান cricketer, BD (b. 1975) |
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| রেজাউল করিম cricketer, BD |
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| রেজাউল হক চৌধুরী Bangladeshi politician, BD |
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| রেজাউল হক cricketer, BD (b. 1982) |
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| রেজাউল ইসলাম cricketer, BD (b. 1987) |
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| রেজাউল করিম Bangladeshi footballer, BD (b. 1987) |
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