Haddad or Hadad is a common family name

Family name

A family name is a type of surname and part of a person's name indicating the family to which the person belongs. The use of family names is widespread in cultures around the world...

 and personal name

Personal name

A personal name is the proper name identifying an individual person, and today usually comprises a given name bestowed at birth or at a young age plus a surname. It is nearly universal for a human to have a name; except in rare cases, for example feral children growing up in isolation, or infants...

. Hadad

Hadad

Haddad was a northwest Semitic storm and rain god, cognate in name and origin with the Akkadian god Adad. Hadad was often called simply Ba‘al , but this title was also used for other gods. The bull was the symbolic animal of Hadad. He appeared as a bearded deity, often shown as holding a club and...

 was also a Semitic

Semitic

In linguistics and ethnology, Semitic was first used to refer to a language family of largely Middle Eastern origin, now called the Semitic languages...

 storm-god.

The original Haddad (Aramaicܚܕܕ or ܚܕܐܕ ) name means Blacksmith

Blacksmith

A blacksmith is a person who creates objects from wrought iron or steel by forging the metal; that is, by using tools to hammer, bend, and cut...

 in ancient Semitic

Semitic

In linguistics and ethnology, Semitic was first used to refer to a language family of largely Middle Eastern origin, now called the Semitic languages...

. The Haddad name dates back to the Phoenician era of the Eastern Mediterranean

Eastern Mediterranean

The Eastern Mediterranean is a term that denotes the countries geographically to the east of the Mediterranean Sea. This region is also known as Greater Syria or the Levant....

. People who have the last name of Haddad are often Christian

Christian

A Christian is a person who adheres to Christianity, an Abrahamic, monotheistic religion based on the life and teachings of Jesus of Nazareth as recorded in the Canonical gospels and the letters of the New Testament...

 whereas among Tunisians they tend to be Jewish. Haddad is the most commonly used Christian surname in the Eastern Mediterranean

Eastern Mediterranean

The Eastern Mediterranean is a term that denotes the countries geographically to the east of the Mediterranean Sea. This region is also known as Greater Syria or the Levant....

 and Arab World

Arab world

The Arab world refers to Arabic-speaking states, territories and populations in North Africa, Western Asia and elsewhere.The standard definition of the Arab world comprises the 22 states and territories of the Arab League stretching from the Atlantic Ocean in the west to the Arabian Sea in the...

. Though a small number of the Haddad clan converted to Islam in the Levant. The Haddad Christians live in Lebanon

Lebanon

Lebanon , officially the Republic of LebanonRepublic of Lebanon is the most common term used by Lebanese government agencies. The term Lebanese Republic, a literal translation of the official Arabic and French names that is not used in today's world. Arabic is the most common language spoken among...

, Syria

Syria

Syria , officially the Syrian Arab Republic , is a country in Western Asia, bordering Lebanon and the Mediterranean Sea to the West, Turkey to the north, Iraq to the east, Jordan to the south, and Israel to the southwest....

, Jordan

Jordan

Jordan , officially the Hashemite Kingdom of Jordan , Al-Mamlaka al-Urduniyya al-Hashemiyya) is a kingdom on the East Bank of the River Jordan. The country borders Saudi Arabia to the east and south-east, Iraq to the north-east, Syria to the north and the West Bank and Israel to the west, sharing...

, Israel/Palestine

Mandate Palestine

Mandate Palestine existed while the British Mandate for Palestine, which formally began in September 1923 and terminated in May 1948, was in effect...

, Iraq

Iraq

Iraq ; officially the Republic of Iraq is a country in Western Asia spanning most of the northwestern end of the Zagros mountain range, the eastern part of the Syrian Desert and the northern part of the Arabian Desert....

, Egypt

Egypt

Egypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...

 and Turkey

Turkey

Turkey , known officially as the Republic of Turkey , is a Eurasian country located in Western Asia and in East Thrace in Southeastern Europe...

 (Turabdin, southeastern Turkey

Turkey

Turkey , known officially as the Republic of Turkey , is a Eurasian country located in Western Asia and in East Thrace in Southeastern Europe...

. In the Aramaic-Turoyo dialect they are also known as "Hadodo ܚܕܕܐ" - but after the prohibition of the use of non-Turkish names 1934 they took Turkish names.
Haddad is the most common surname in Lebanon, with about 2.42% or 96,800 people having the surname in Lebanon alone.

Haddad is the most common Christain surname in Jordan and the largest Christian family in Jordan, with about 35,000 people having the surname in Jordan.