Beryllium oxalate is an inorganic compound, a salt of beryllium metal and oxalic acid with the chemical formula C2BeO4.

[3] It forms colorless crystals, dissolves in water, and also forms crystalline hydrates.

The compound is used to prepare ultra-pure beryllium oxide[4] by thermal decomposition.

[5] The action of oxalic acid on beryllium hydroxide:[6] Crystalline hydrates lose water when heated: