Halleyf & mEnglish, Portuguese (Brazilian) Transferred use of the surname Halley. It peaked in popularity in 1986, when Halley's Comet was last spotted from Earth. It rose again in the US in the mid 1990's when similar-sounding names (like Haley and Hallie) were increasing in popularity.
HuldafBrazilian (Rare) Possibly a variant of Hilda. Also, compare the names Astrid and Astrud, which could be more examples of how an I can turn into a U.
IberêmBrazilian, Tupi Originally a diminutive of Itiberê, which is said to be derived from Tupi y "water; river" and tiri'ri "to drag oneself" and is thus commonly interpreted as "creeping river".
IndaiáfBrazilian, Tupi Derived from Tupi ini'yá "thread fruit", itself derived from Tupi inĩ "hammock" and Old Tupi 'ybá "fruit", referring to the use of fruit fibers for the production of (sleeping) hammocks.
IpêfTupi Derived from Tupi ï'pe "shell (of a seed)". This is the Portuguese name for several bignoniaceae trees known for the beauty of their flowers. Moreover, the ipê was elected as the Brazilian national tree.
Irianm & fIndonesian, Brazilian (Rare), Spanish (Rare) Historical name for the island of New Guinea in Indonesian, from Biak meaning "hot land". It is also a woman-dragon character in Ursula K. Le Guin's Earthsea novels.