(uncountable) Initialism of guanosine monophosphate (guanylic acid) / (uncountable) Initialism of good manufacturing practice. / (countable, UK, pensions) Initialism of Guaranteed Minimum Pension.

(UK) Initialism of Greater Manchester Police.

plural of GMP

(electronics) Initialism of generalized multi-protocol label switching.

(hydrology, institution) Initialism of GEWEX Modelling and Prediction Panel. / (hydrology, institution) Initialism of Global Marine and Polar Programme.