Saudi Arabian football clubs in the AFC Champions League

The 2011 AFC Champions League was the 30th edition of the top-level Asian club football tournament organized by the Asian Football Confederation (AFC), and the 9th under the current AFC Champions League title. The winners, Al-Sadd qualified for the 2011 FIFA Club World Cup in Japan.

Al Ain Football Club or Al Ain FC or simply Al Ain is a professional football club, based in the city of Al Ain, Abu Dhabi, United Arab Emirates. It is one of many sport sections of the multi-sports club Al Ain Sports and Cultural Club Al Ain SCC for short.

Al Ain is a border city on the eastern side of Tawam oasis and the seat of the administrative division of its namesake, Al Ain in the Emirate of Abu Dhabi, United Arab Emirates. It is bordered to the east by the Omani town of Al-Buraimi in the Al Buraimi Governorate. It is the largest inland city in the Emirates, the fourth-largest city, and the second-largest in the Emirate of Abu Dhabi. The freeways connecting Al-Ain, Abu Dhabi, and Dubai form a geographic triangle in the country, each city being roughly 130 kilometres (81 mi) from the other two.

Iran, officially the Islamic Republic of Iran and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmenistan to the north, by Afghanistan and Pakistan to the east, and by the Gulf of Oman and the Persian Gulf to the south. It covers an area of 1.64 million square kilometres, making it the 17th-largest country. Iran has an estimated population of 86.8 million, making it the 17th-most populous country in the world, and the second-largest in the Middle East. Its largest cities, in descending order, are the capital Tehran, Mashhad, Isfahan, Karaj, Shiraz, and Tabriz.

Esteghlal Football Club, commonly known as Esteghlal, is an Iranian football club based in capital Tehran that competes in the Persian Gulf Pro League. The first team of the capital of Iran, the club was founded in 1945 as and previously known as Tâj between 1949 and 1979. The club is part of the multisport club Esteghlal of Iran Athletic and Cultural Company. They were the first team to reach 1,000 points in Persian Gulf Pro League.

Qatar, officially the State of Qatar, is a country in Western Asia. It occupies the Qatar Peninsula on the northeastern coast of the Arabian Peninsula in the Middle East; it shares its sole land border with Saudi Arabia to the south, with the rest of its territory surrounded by the Persian Gulf. The Gulf of Bahrain, an inlet of the Persian Gulf, separates Qatar from nearby Bahrain. The capital is Doha, home to over 80% of the country's inhabitants, and the land area is mostly made up of flat, low-lying desert.

Al Sadd Sports Club is a Qatari sports club based in the Al Sadd district of the city of Doha. It is best known for its association football team, which competes in the top level of Qatari football, the Qatar Stars League. Locally, it is known primarily by the nickname "Al Zaeem", which translates to "The Boss". It is known as the best team in Qatar and is the only Qatari team that has won the AFC Champions League in Asia. In addition to football, the club has teams for handball, basketball, volleyball, table tennis, and athletics. It is the most successful sports club in the country, and holds a national record of 57 official football championships.

Riyadh, formerly known as Hajr al-Yamamah, is the capital and largest city of Saudi Arabia. It is also the capital of the Riyadh Province and the centre of the Riyadh Governorate.

Iraq, officially the Republic of Iraq, is a country in Western Asia. It is bordered by Turkey to the north, Iran to the east, the Persian Gulf and Kuwait to the southeast, Saudi Arabia to the south, Jordan to the southwest and Syria to the west. The capital and largest city is Baghdad. Iraq is home to diverse ethnic groups including Iraqi Arabs, Kurds, Turkmens, Assyrians, Armenians, Yazidis, Mandaeans, Persians and Shabakis with similarly diverse geography and wildlife. The majority of the country's 40 million residents are Muslims – the notable other faiths are Christianity, Yazidism, Mandaeism, Yarsanism and Zoroastrianism. The official languages of Iraq are Arabic and Kurdish; others also recognised in specific regions are Suret (Assyrian), Turkish and Armenian.

Kuwait City is the capital and largest city of Kuwait. Located at the heart of the country on the south shore of Kuwait Bay on the Persian Gulf, it is the political, cultural and economical centre of the emirate, containing Kuwait's Seif Palace, government offices, and the headquarters of most Kuwaiti corporations and banks. It is one of the hottest cities in summer on earth, with average summer high temperatures over 45 °C (113 °F) for three months of the year.

Kuwait, officially the State of Kuwait, is a country in Western Asia. It is situated in the northern edge of Eastern Arabia at the tip of the Persian Gulf, bordering Iraq to the north and Saudi Arabia to the south. Kuwait also shares maritime borders with Iran. Kuwait has a coastal length of approximately 500 km (311 mi). Most of the country's population reside in the urban agglomeration of the capital city Kuwait City. As of 2022, Kuwait has a population of 4.45 million people of which 1.45 million are Kuwaiti citizens while the remaining 3.00 million are foreign nationals from over 100 countries. Kuwait has the largest number of stateless people in the entire region.

Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in Western Asia. It covers the bulk of the Arabian Peninsula, and has a land area of about 2,150,000 km2 (830,000 sq mi), making it the fifth-largest country in Asia, the second-largest in the Arab world, and the largest in Western Asia and the Middle East. It is bordered by the Red Sea to the west; Jordan, Iraq, and Kuwait to the north; the Persian Gulf, Qatar and the United Arab Emirates to the east; Oman to the southeast; and Yemen to the south. Bahrain is an island country off its east coast. The Gulf of Aqaba in the northwest separates Saudi Arabia from Egypt and Israel. Saudi Arabia is the only country with a coastline along both the Red Sea and the Persian Gulf, and most of its terrain consists of arid desert, lowland, steppe, and mountains. Its capital and largest city is Riyadh. The country is home to Mecca and Medina, the two holiest cities in Islam.

Jeddah, alternatively transliterated as Jedda, Jiddah or Jidda, is a city in the Hejaz region of western Saudi Arabia and the country's commercial center. It is not known when Jeddah was founded, but Jeddah's prominence grew in 647 when the Caliph Uthman made it a travel hub serving Muslim travelers going for Islamic pilgrimage to the holy city of Mecca. Since those times, Jeddah has served as the gateway for millions of pilgrims who have arrived in Saudi Arabia, traditionally by sea and recently by air. With a population of about 4,697,000 people as of 2021, Jeddah is the largest city in Makkah Province, the largest city in Hejaz, the second-largest city in the Saudi Arabia, and the ninth-largest in the Middle East. It also serves as the administrative centre of the OIC. Jeddah Islamic Port, on the Red Sea, is the thirty-sixth largest seaport in the world and the second-largest and second-busiest seaport in the Middle East.

The 2011 AFC Champions League was the 30th edition of the top-level Asian club football tournament organized by the Asian Football Confederation (AFC), and the 9th under the current AFC Champions League title. The winners, Al-Sadd qualified for the 2011 FIFA Club World Cup in Japan.