The Arabic name العتيبي has no single official Latin spelling. Transliteration systems make different choices for the initial vowel, the doubled consonant, and the diphthong, and individuals often keep whichever spelling first appeared on their documents. As a result, Al Otaibi, Al-Otaibi, Alotaibi, Al-Utaibi, Alotaiby, and El-Oteibi all circulate at the same time.
For researchers, the rule of thumb is to search broadly: combine several spellings, try the name with and without the Al- prefix, and include the Arabic script form where possible. The same advice applies to the given name and patronymic, which may appear as Shawahina or Shawahinah, and as bint, binte, or binteid.