Cerro Otto, Mountain summit near San Carlos de Bariloche, Argentina.

Cerro Otto is a mountain summit near San Carlos de Bariloche rising to approximately 1,400 meters above sea level. Multiple routes lead to observation areas with views of Nahuel Huapi Lake and the surrounding Andean peaks.

The mountain takes its name from Otto Goedecke, a German settler who established himself in Bariloche during the 1890s. His presence marked part of the early European settlement period in this Patagonian region.

The summit's rotating cafeteria belongs to the Sara María Furman Foundation, and the cable car that reaches it was inaugurated in 1974 by Boris Furman. Next to the cafeteria, a gallery permanently displays three replicas of Michelangelo's sculptures: David, the Pietà and Moses. The mountain is named after Otto Goedecke, a German pioneer who arrived in Bariloche in 1892 and farmed on its slopes in Melipal.

A cable car system brings visitors to the summit in minutes, while a hiking trail offers an alternative for those preferring to walk. The location is easily accessible from downtown Bariloche and attracts most visitors during warmer months.

The zip line at the summit runs 7 metres above the ground, a figure often missed by visitors who assume it follows the slope. A climbing wall stands nearby, and the upper slopes hold Nordic and alpine ski runs in the Piedras Blancas area, plus a small climbing centre for beginner and intermediate levels.