a two-seat turboprop training and aerobatic low-wing aircraft with a composite airframe, built by Grob Aircraft.

a general aviation fixed-wing aircraft, primarily used for flight training.

Grob Aircraft, formerly Grob Aerospace, is a German aircraft manufacturer, specialising in gliders and general aviation.

a two-seat training and aerobatic low-wing aircraft with a carbon composite airframe, built by Grob Aircraft.

The Grob G 520 ‘EGRETT’ is a turboprop-powered long-endurance, high-altitude reconnaissance and surveillance aircraft designed and produced by the German aircraft manufacturer Grob Aircraft.

a low-wing twin-engined composite corporate jet designed and built by German aircraft manufacturer Grob Aerospace.

The Grob G109 is a light aircraft developed by Grob Aircraft AG of Mindelheim Mattsies in Germany.

The G103 Twin II (originally designated the G 118) is a high-performance two-seat sailplane manufactured in Germany by Grob Aircraft.

The G102 Astir is a single-seat glassfibre Club Class sailplane, designed by Burkhart Grob and built by Grob Aircraft.

The Grob G 103 Twin Astir is a glass-reinforced plastic two-seat sailplane that was developed in Germany in the 1970s by Grob Aircraft AG as a counterpart to the single-seat G 102 Astir, then in production.

A Grob fragmentation is an elimination reaction that breaks a neutral aliphatic chain into three fragments: a positive ion spanning atoms 1 and 2 (the "electrofuge"), an unsaturated neutral fragment spanning positions 3 and 4, and a negative ion (the "nucleofuge") comprising the rest of the chain.

(4 June 1904) a Swiss chess player, artist, and painter.