Where Does The Last Name Effect Come From? ^{nationality or country of origin}

The last name Effect is carried by more people in Iran than any other country/territory. It can also occur as a variant:. Click here for further potential spellings of this surname.

How Common Is The Last Name Effect? ^{popularity and diffusion}

The last name is the 3,957,383^rd most common family name at a global level, borne by approximately 1 in 291,501,837 people. Effect occurs predominantly in Asia, where 80 percent of Effect are found; 80 percent are found in South Asia and 80 percent are found in Islamic South Asia. It is also the 2,301,746^th most commonly used first name on earth, held by 22 people.

This last name is most commonly held in Iran, where it is carried by 19 people, or 1 in 4,041,185. In Iran Effect is most frequent in: Tehran Province, where 63 percent reside, Khuzestan Province, where 26 percent reside and Isfahan Province, where 5 percent reside. Outside of Iran this surname exists in 2 countries. It also occurs in Nigeria, where 20 percent reside and Afghanistan, where 4 percent reside.