Archigrammitis is a genus of ferns in the family Polypodiaceae, subfamily Grammitidoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I).

The rhizomes are dorsiventral (having distinct upper and lower surfaces) with stipes closely spaced attached in two rows.

[2] The leaf blades are undivided, usually bearing branched veins and more than one row of sori on either side of the costa.

The sporangia bear one to two (occasionally as many as six) stiff, simple straight hairs without glands at the tip of the sporangium.

The presence of simple, stiff hairs on the sporangium is shared with Oreogrammitis and Radiogrammitis.