Yes they do, uou just have to spell it correctly.
http://en.wikipedia.org/wiki/Bah%C3%A1’%C3%AD_Faith
The Bahá'í Faith is a religion founded by Bahá'u'lláh in 19th-century Persia, emphasizing the spiritual unity of all humankind.[1] There are about six million Bahá'ís in more than 200 countries and territories around the world.[2][3]
According to Bahá'í teachings, religious history has unfolded through a series of God's messengers who brought teachings suited for the capacity of the people at their time, and whose fundamental purpose is the same. Bahá'u'lláh is regarded as the most recent, but not final, in a line of messengers that includes Abraham, Moses, Zoroaster, Buddha, Krishna, Jesus, Muhammad and others. Bahá'u'lláh's claim to fulfill the eschatological promises of previous scriptures coincides with his mission to establish a firm basis for unity throughout the world, and inaugurate an age of peace and justice, which Bahá'ís expect will inevitably arise.[4]
Bahá'í (IPA: [bæhɒːʔiː] Persian: بهائی) can be an adjective referring to the Bahá'í Faith, or used as a term for a follower of Bahá'u'lláh. (Bahá'í is not a noun meaning the religion as a whole.) The word comes from the Arabic word Bahá’, meaning "glory" or "splendour".[5] "Bahaism" (or "Baha'ism") has been used in the past but is fading from use.
The problem with the Bahai is they are just too darn moderate for a place like Iran.