Cognomen Rulla (Rulla 
) , all over the world, is a rare last name. The last name Rulla is characteristic of Latvia, where it is a rare surname, Philippines, and Saudi Arabia, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in India, Philippines, and Indonesia. Also, Rulla is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rulla | Egypt, Philippines, India, Indonesia, United States |
| luigi m. rulla (b. 1922) |
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| james lorin rulla Ph.D. University of Texas at Austin 1985 |
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| william frederick rulla Ph.D. University of Texas at Austin 2001 |
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