The Constitution of the Republic of Cyprus (Greek: Σύνταγμα της Κυπριακής Δημοκρατίας) is a document, ratified on August 16, 1960, that serves as the Supreme Law of the Republic of Cyprus (Suprema Lex Cypri) defining the system of government of the Cypriot Republic and the civil liberties for the Cypriot citizens. Cypriot government. It was drafted after the country won its independence in 1959 and is Cyprus's first and only constitution to date. The Constitution of the Republic of Cyprus has been in force for 65 years and it has been amended 22 (twenty two) times and 31 Articles of the 199 were modified since 1960. The 21st Amendment concerned Articles 135, 136, 146, 152, 155 (in force since 22.7.2025). 24 of the 199 concerning Communal Autonomy have been suspended in practice since 1964 when the Doctrine of Necessity was introduced.

The Constitution of Cyprus establishes a bicommunal unitary Republic with partial communal autonomy and a Presidential system of government with a Greek-Cypriot President and a Turkish-Cypriot Vice-President, both with extensive veto powers as a means to safeguard the rights of their respective communities.

The constitution put methods in place to protect Turkish Cypriots, due to the restrictions placed in Article 6 of the document. That article ensures the Cypriot government has no right to discriminate against either Turkish or Greek Cypriots. The constitution also ensures, in Article 1, that the Vice-President of the country is a Turk and the President is a Greek. In 1964, however, the Cypriot government became dominated by Greeks.

The constitution of the country collapsed, however, in 1963 due to a dispute between the Greek and Turkish Cypriots. The running of the republic by the Greek community alone has been legally defined in what is called "Justice of need". Following the Turkish invasion of 1974 the state acts as a surrogate for the properties of Turkish Cypriots that moved to the Turkish-occupied north. Following Cyprus's entry into the EU in 2004 and the Ibrahim Aziz vs. Republic of Cyprus case in the European Court of Human Rights, some individual civil rights of Turkish Cypriots residing in the area under the control of the Republic have been restored, thus they can be part of the electoral register and stand in European elections. This, however, has not restored their communal rights as envisaged in the original constitution, i.e. separate electoral register to elect a vice president and a fixed number of members of the house of representatives.

In 1963, the Constitution broke down as the Turkish Cypriots involved withdrew from the government, and as a result the Greeks took full control of the government in 1965, as the Turkish Cypriots would not co-operate for constitutional changes, despite the constitutional safeguards to ensure representation of Turks that had previously existed.

The separation occurred because the two ethnic groups continued to distrust each other after the constitution was signed. Another issue that caused the breakdown was that President Makarios III, a Greek Cypriot, supported complete integration between the two ethnic groups, while Vice President Fazil Küçük, a Turkish Cypriot, supported increased separation.

In addition, President Makarios proposed a constitutional change that year to remove most of the rights given to Turkish Cypriots. He said that the original constitution prevented the Turks and Greeks from "cooperating in the spirit of understanding and friendship."

The first five articles of the constitution discuss General Provisions.