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

The last name Effect is found in Iran more than any other country or territory. It may also occur as a variant:. For other potential spellings of this name click here.

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

The last name is the 3,957,383^rd most commonly held last name worldwide. It is borne by around 1 in 291,501,837 people. The surname occurs mostly in Asia, where 80 percent of Effect reside; 80 percent reside in South Asia and 80 percent reside in Islamic South Asia. Effect is also the 2,301,746^th most frequently occurring first name internationally It is held by 22 people.

The last name is most widely held in Iran, where it is carried by 19 people, or 1 in 4,041,185. In Iran it is primarily found in: Tehran Province, where 63 percent are found, Khuzestan Province, where 26 percent are found and Isfahan Province, where 5 percent are found. Beside Iran it occurs in 2 countries. It is also common in Nigeria, where 20 percent are found and Afghanistan, where 4 percent are found.