Betzenbuckel, Nature reserve in Friolzheim and Heimsheim, Germany.

Betzenbuckel is a nature and landscape conservation area covering the slopes and summit of a 494 m hill about 100 metres south-east of Friolzheim. Its terrain is Muschelkalk (shell limestone), with dry sites, sheep pastures, hedges, orchards, semi-dry grassland, stone piles and small woods, and it lies within the FFH area Calwer Heckengäu.

The area received official protection status in 1997 when regional authorities designated it as a conservation zone to safeguard its ecological diversity. This designation helped prevent changes that could have damaged the site's sensitive habitats and species.

The reserve plays a role in how residents connect with nature, serving as a place where conservation groups engage people in learning about local ecosystems. Communities from nearby towns participate in hands-on protection efforts that help maintain the landscape for future generations.

The site features marked trails for visitors to walk through and observe the landscape safely. The best time to visit is during warmer months when the variety of plants and wildlife is most visible and active.

The reserve protects a large stand of two gentian species, the German gentian and the fringed gentian, alongside frequent mosquito helleborine. Its dry slopes and sheep pastures also hold three scarce birds: the common whitethroat, the red-backed shrike and the woodlark.