| Country | Formal relations began | Notes |
| 1878-09-23 | See Foreign relations of Austria
Austria was the first country who recognized Romania's independence from Turkey. The relations were suspended on August 27, 1916 when Romania declared war on Austria-Hungary, entering the First World War. On August 27, 1920, the diplomatic relations were resumed, this time with Austria proper, due to the dissolution of the Austria-Hungary Empire. On April 5, 1938 relations were suspended again, few days before the annexation of Austria by Germany. Relations resumed on October 8, 1947, two years after Austria's secession from Germany.
Diplomatic relations' level:
- Legation: – ; August 27, 1920 – April 5, 1938.
- Political mission: October 8, 1947 – August 1, 1955.
- Legation: August 1, 1955 – September 26, 1963.
- Embassy: since September 26, 1963.
Diplomatic relations' timeline:
- –
- August 27, 1920 – April 5, 1938
- since October 8, 1947.
|
| 1880-03-29 | See Foreign relations of Belgium Romania has an embassy in Brussels, 5 honorary consulates and the Romanian Cultural Institute in Brussels. The Kingdom of Belgium has an embassy in Bucharest.Diplomatic relations' level:
- Legation: – February 11, 1941; July 4, 1946 – December 3, 1963
- Embassy: since December 3, 1963
Diplomatic relations' timeline:
- – February 11, 1941
-
- since July 4, 1946
|
| 1879-07-28 | See Bulgaria–Romania relations |
| 1941-05-13 | See Croatia–Romania relationsCroatia has an embassy in Bucharest.
Romania has an embassy in Zagreb.
Croatia joined the European Union as a full member on July 1, 2013, while Romania joined on January 1, 2007. |
| 1960-08-16 | See Foreign relations of Cyprus
Cyprus joined the European Union as a full member on May 1, 2004, while Romania joined on January 1, 2007.
Diplomatic relations' level:
- Legation: August 16 – November 13, 1960
- Embassy: since November 13, 1960
Diplomatic relations' timeline:
|
| 1919-04-06 | See Foreign relations of the Czech Republic Romania has an embassy in Prague and the Romanian Cultural Institute. Czech Republic has an embassy in Bucharest and an honorary consulate in Timișoara.Diplomatic relations' level:
- Governmental mission: – January 30, 1920
- Legation: January 30, 1920 – July 1, 1939
- Political Mission: June 7 – October 1, 1945
- Legation: October 1, 1945 – December 1, 1947
- Embassy: December 1, 1947
Diplomatic relations' timeline:
- – July 1, 1939
-
- since June 7, 1945
|
| 1917-04-26 | See Denmark–Romania relations |
| 1921-03-21 | See Foreign relations of EstoniaBetween 1924–1940, the diplomatic representation of Romania in Estonia was handled by the Romanian legation in Warsaw, Poland.
- Romania has no diplomatic office in Estonia. The diplomatic representation of Romania is Estonia is handled by the Romanian embassy in Helsinki, in neighbouring Finland.
- Estonia has no embassy in Romania, only an honorary consulate in Bucharest. The diplomatic representation of Estonia in Romania is handled by the Estonian embassy in Warsaw, Poland.
Diplomatic relations' level:
- Legation: March 21, 1924 – August 6, 1940
- Embassy: since September 13, 1991
Diplomatic relations' timeline:
March 21, 1924 – August 6, 1940
since September 13, 1991 |
| 1920-06-28 | See Finland–Romania relations
- Romania has an embassy in Helsinki.
- Finland has an embassy in Bucharest and two honorary consulates in Bucharest and Constanţa.
Diplomatic relations' level:
- Legation: June 28, 1920 – August 12, 1963
- Embassy: since August 12, 1963
Diplomatic relations' timeline:
|
| 1880-02-20 | See France–Romania relations France has an embassy in Bucharest. Romania has an embassy in Paris and consulates-general in Lyon, Marseille and Strasbourg. |
| 1880-02-20 | See Germany–Romania relations Romania has an embassy in Berlin, 2 general consulates, 5 honorary consulates and the Romanian Cultural Institute "Titu Maiorescu". Germany has an embassy in Bucharest and 2 general consulates.Diplomatic relations' level:
- Diplomatic Agency: 1872 –
- Legation: – ; September 29, 1920 – August 23, 1944
- Embassy: since January 31, 1967
Diplomatic relations' timeline:
- –
- September 29, 1920 – August 23, 1944
- since January 31, 1967
|
| 1880-01-08 | See Greece–Romania relations |
| 1920-08-21 | See Hungary–Romania relations |
| 1990-04-18 | See Ireland–Romania relations |
| 1879-12-06 | See Italy–Romania relations Romania has an embassy in Rome, 4 general consulates, 6 honorary consulates and 2 Romanian Cultural Institutes Italy has an embassy in Bucharest, a general consulate in Timișoara and 4 honorary consulates.Diplomatic relations' level:
- Legation: – March 9, 1964
- Embassy: since March 9, 1964
Diplomatic relations' timeline:
|
| 1921-02-21 | See Foreign relations of LatviaBetween June 2, 1922 – October 18, 1939, the diplomatic representation of Latvia in Romania was handled by the Latvian legation in Prague, in then neighbouring Czechoslovakia. In 1924, Latvia opened 3 honorary consulates in Romania. On October 18, 1939, Latvia opened its legation in Bucharest. In May 1929, Romania opened its legation in Riga.
- Romania has no embassy in Latvia, only an honorary consulate in Riga. The diplomatic representation of Romania in Latvia is handled by the Romanian embassy in Vilnius, in neighbouring Lithuania.
- Latvia has no diplomatic office in Romania. The diplomatic representation of Latvia in Romania is handled by the Latvian embassy in Warsaw, Poland.
Diplomatic relations' level:
- Legation: June 2, 1922 – August 5, 1940
- Embassy: since September 13, 1991
Diplomatic relations' timeline:
- June 2, 1922 – August 5, 1940
- since September 13, 1991
|
| 1924-08-21 | See Lithuania–Romania relations |
| 1910-12-18 | See Foreign relations of Luxembourg Romania has an embassy in Luxembourg. Luxembourg has an honorary consulate in Bucharest. The diplomatic representation of Luxembourg in Romania is handled by the Luxembourgian embassy in Athens, Greece.Diplomatic relations' level:
- Legation: – July 15, 1940; July 4, 1946 – November 15, 1966
- Embassy: since November 15, 1966
Diplomatic relations' timeline:
- – July 15, 1940
- since July 4, 1946
|
| 1968-06-07 | See Foreign relations of Malta Romania has an honorary consulate in Valletta. The diplomatic representation of Romania in Malta is handled by the Romanian embassy in Rome, in neighbouring Italy. Malta has an honorary consulate in Bucharest. The diplomatic representation of Malta in Romania is handled by the Chancellory of Malta in Romania, oddly situated in Valletta, Malta.Diplomatic relations' level:
- Embassy: since June 7, 1968
Diplomatic relations' timeline:
|
| 1880-01-24 | See Netherlands–Romania relations |
| 1919-02-22 | See Poland–Romania relations |
| 1917-08-25 | See Foreign relations of Portugal Romania has an embassy in Lisbon, 3 honorary consulates and the Romanian Cultural Institute in Lisbon. Portugal has an embassy in Bucharest.Diplomatic relations' level:
- Legation: – November 7, 1947
- Embassy: since May 31, 1974
Diplomatic relations' timeline:
- – November 7, 1947
- since May 31, 1974
|
| 1993-01-01 | See Romania–Slovakia relations |
| 1992-08-28 | See Romania–Slovenia relations |
| 1881-07-05 | See Romania–Spain relations |
| 1916-03-18 | See Romania–Sweden relations |
