Antoon Postma (Hanunó'o: ᜠᜨ᜴ᜦᜳᜨ᜴ ᜩᜳᜰ᜴ᜦ᜴ᜫ Buhid: ᝀᝈ᜔ᝆᝓᝈ᜔ ᝉᝓᝐ᜔ᝆ᜔ᝋ) (28 March 1929 – 22 October 2016)[1] was a Dutch anthropologist who married into and lived among the Hanunuo, a Mangyan sub-tribe in southeastern Mindoro, Philippines.[2] He is best known for being the first to decipher the Laguna Copperplate Inscription, and for documenting the Hanunó'o script, paving the way for its preservation and understanding.