ZA or Za may refer to:
Zachary David Alexander Efron (; born October 18, 1987) is an American actor and singer. He began acting professionally in the early 2000s and rose to prominence in the late 2000s for his leading role as Troy Bolton in the High School Musical franchise (2006–2008).
Zagreb (; Croatian pronunciation: [zǎːɡreb] (listen)) is the capital and the largest city of Croatia. It is located in the northwest of the country, along the Sava river, at the southern slopes of the Medvednica mountain.
Zambia (), officially the Republic of Zambia, is a landlocked country in south-central Africa (although some sources consider it part of East Africa).
Zachary Taylor (November 24, 1784 – July 9, 1850) was the 12th president of the United States, serving from March 1849 until his death in July 1850. Taylor previously was a career officer in the United States Army, rose to the rank of major general and became a national hero as a result of his victories in the Mexican–American War.
Zanzibar (; Swahili: Zanzibar; Arabic: زِنْجِبَار, romanized: Zinjibār) is a semi-autonomous region of Tanzania.
Zain Javadd Malik (; born 12 January 1993), known mononymously as Zayn, is an English singer and songwriter.
Dame Zaha Mohammad Hadid (Arabic: زها حديد Zahā Ḥadīd; 31 October 1950 – 31 March 2016) was an Iraqi–British architect.
The Zamorin of Calicut (Malayalam: Samoothiri, Portuguese: Samorim, Dutch: Samorijn, Chinese: Shamitihsi) was the hereditary monarch of the kingdom of Kozhikode (Calicut) on the Malabar Coast of India.