"Form of Poppy"
The name Poppi is commonly a female name from the "English" origin.
Poppi is a respelling of Poppy, the English girls' name taken from the word for the flowering plant. Swapping a final -y for -i is a common English spelling variation, as in Lilli for Lily or Molli for Molly. The two spellings share the same source; Poppi carries no separate meaning of its own.
Poppy means "From the Flower".
The pronunciation of Poppi is PAH-pee.