Cikoneng Lighthouse, Cast iron lighthouse in Anyar, Indonesia.

The Cikoneng Lighthouse is a 75.5-metre cast-iron tower with walls 2.5–3 cm thick, standing 500 metres from the sea in Anyer. Its interior has 18 floors and 286 steps leading to the top. The original stone tower's foundation, destroyed in 1883, is now a zero-kilometre marker.

The first lighthouse at this site was destroyed by the tsunami that followed the 1883 eruption of Krakatoa; only its foundation remained. The present cast-iron tower was erected in 1885 during the reign of King Willem III of the Netherlands, as recorded on the inscription above the entrance. It was built 500 metres inland from the sea, and the old foundation now serves as a zero-kilometre marker.

The lighthouse is named after the nearby village of Cikoneng. Its entrance carries a Dutch inscription recording that it was erected under King Willem III of the Netherlands for a fixed light of the second order, replacing the stone tower destroyed in the 1883 Krakatoa disaster. The old foundation now serves as a zero-kilometre marker.

The lighthouse stands 500 metres from the sea, and the old foundation is marked as kilometre zero. Visitors climb 286 steps across 18 floors to reach the top; the interior is kept clean to prevent slipping. The site is open daily from 8 am to 5 pm.

The maker's plate on the rear reads "VERVAARDIGD DOOR DE FIRMA L.I.E.N.T.H.O.V.E.N & Co, 's-GRAVENHAGE, HOLLAND, 1885". The Hague firm cast the tower in sections; its steel walls are 2.5–3 cm thick and are repainted regularly, while the interior is cleaned to keep the stairs from becoming slippery.