Ooidonk Castle is a picturesque castle located in the village of Ooidonk in the province of East Flanders, Belgium. The castle dates back to the 12th century and has undergone significant renovations and restorations throughout the centuries.

The castle's architecture is a mix of different styles, including Gothic, Renaissance, and Baroque. It is surrounded by a moat and has a beautiful French garden with a large pond. The interior of the castle features impressive works of art, including tapestries and paintings, as well as antique furniture and ornate decor.

The castle has been owned by the same family, the t'Kint de Roodenbeke family, for over 400 years. It is open to the public for guided tours during the summer months, allowing visitors to admire the castle's impressive architecture and interior decorations. In addition to guided tours, the castle hosts various events throughout the year, including concerts, exhibitions, and cultural events.