General Creole:
* Ou konnen ki moun mwen ye? (Formal)
* Ou konnen ki moun mwen? (Informal)
* Ou sav ki moun mwen ye? (Informal, common in Haitian Creole)
* Ou sav ki moun mwen? (Informal, common in Louisiana Creole)
More idiomatic expressions:
* Ou konnen mwen ki moun? (Literally "You know who I am?")
* Ou konnen ki sa mwen ye? (Literally "You know what I am?")
Remember that Creole dialects vary greatly and some of these phrases may not be understood in all regions. It's always best to use the expressions that are common in the specific dialect you're using.
It's also important to consider the context of the conversation. If you're asking someone if they know you, you might use a more polite and formal expression. If you're already in a friendly conversation, you might use a more informal expression.