Ugljan ( pronounced [ɡʎɡʎan] ; Italian : Ugliano ) is a Croatian island and the first in the Zadar Archipelago . It is located northwest of the island of Pašman and southeast of the islands of Rivanj and Sestrunj . Separated from the mainland by the Zadar Channel, it is connected with the island of Pašman by the Ždrelac Bridge spanning the Ždrelac Strait . Area 50.21 km 2(19.39 sq mi), population 6.049 (2011), length 22 km (14 mi), width to 3.8 km (2.4 mi). 
The continuity of population dates back to the present day in 1325.  The continuity of population dates back to the Neolithic . Densely populated during the Roman period, in particular its north-western parts, where ample ruins of ancient buildings have been found. The present settlements date back to the Middle Ages . It is also home to Califfi Castle .
The limestone part of the island is predominantly covered with macchia , while the dolomite area is occupied by farmland. Larger coves are Muline in the northwest, Lamjana Vela and Lamjana Mala in the southeast. The eastern coast descends mildly to the sea, characterized by many indents.
Ugljan is one of the most densely populated Croatian islands. All settlements ( Preko , Ugljan , Lukoran , Sutomišćica , Poljana , Kali , Ošljak and Kukljica ) are situated along the coast of the cultivated eastern side of the island. Major crops include olives , figs and vines . Set high above Preko are the ruins of St. Michael Fort . Ugljan has a regional road connected by the bridge with the regional road running along the island of Pašman . Ferry port in Preko ; ferry connections withZadar .
- Jump up^ Ostroški, Ljiljana, ed. (December 2015). Statistiki ljetopis Republike Hrvatske 2015 [ Statistical Yearbook of the Republic of Croatia 2015 ] (PDF) . Statistical Yearbook of the Republic of Croatia (in Croatian and English). 47 . Zagreb: Croatian Bureau of Statistics . p. 47. ISSN 1333-3305 . Retrieved 27 December 2015 .
- Jump up^ Duplančić Leder, Tea; Ujević, Tin; Čala, Mendi (June 2004). “Coastline lengths and areas of the islands in the Croatian part of the Adriatic Sea determined from the topographic maps of the scale of 1: 25,000” (PDF) . Geoadria . Zadar . 9 (1): 5-32 . Retrieved 2011-01-21 .
- Jump up^ Naklada Naprijed,The Croatian Adriatic Tourist Guide, pg. 186, Zagreb (1999),ISBN 953-178-097-8