Yñldñz Park () is a historical, urban park in the Beà Âiktaà  district of Istanbul, Turkey. It is one of the largest public parks in Istanbul. The park is located in Yñldñz quarter between the palaces of Yñldñz and ÃÂñraÃÂan.
Yñldñz Park was once part of the imperial garden of Yñldñz Palace. Extending down the slopes from the palace, this walled park was reserved only for palace dwellers during the reign of Sultan Abdulhamid II.
The area of Yñldñz used to be a forest in Byzantine times. Starting during the reign of Suleiman the Magnificent, the sultans made it their hunting grounds. In the next centuries, it remained as a grove behind the seaside palaces. The neighbourhood began to flourish in the wake of construction of the palace in the 19th century. It took its name from the first pavilion, namely Yñldñz Kasrñ, commissioned by Selim III in early 19th century.
The of the palace's external garden were surrounded by high walls and detached from a grove during the reign of Abdulhamid II in the 19th century. A small artificial lake, pavilions, summer houses and a porcelain factory were established in this section.
At present, Yñldñz Park is a beautiful garden complex set in a very large park of flowers, plants and trees, gathered from every part of the world, dating from the Ottoman era. Park grounds offer panoramic views of the Bosphorus. The park is a popular picnic place especially for the weekends. Two beautiful Ottoman era pavilions, namely the ÃÂadñr and Malta pavilions, are today café/restaurants where people have breakfast or lunch, or drink a cup of tea or coffee.
The park is separated into two sections, the outer section is open to the public and comprises the à Âale, ÃÂadñr and Malta pavilions and the still-operating Yñldñz porcelain factory. The vegetation of the park includes magnolia, bay leaves, Judas trees, silver limes and horse-chestnuts. Furthermore, the park shelters oak, cypress, pine, yew, cedar and ash trees. Besides, the outer section has two man-made lakes.