Basilio Haggiar, BS (born on 6 January 1839 in Gezzin, Syria - died in 1919) was an archbishop of the Melkite Greek Catholic Archeparchy of Bosra and Hauran in Syria and Melkite Greek Catholic Archeparchy of Sidon in Lebanon.
Basil Haggiar was appointed on 14 October 1871 as Bishop of Bosra and Hauran in Syria and was consecrated on 24 October 1871 to the bishopric. With the establishment of the Archeparchy of Bosra and Hauran in 1881, he has been implemented as Archbishop of Bosra and Hauran. In 1887 Haggiar took over the archbishopric of Sidon in Lebanon and died in 1919 after 47 years of episcopal life. His successor in Bosra and Hauran was Archbishop Nicolas Cadi and Atanasio Khoriaty in Sidon.