autotitularse

Used, often skeptically, for someone who gives themselves a title or label without external validation — se autotitula experto, coach, gurú. Similar in spirit to autonombrarse and autoproclamarse, but focused specifically on titles and labels.

• Se autotitula experto en finanzas, aunque no tiene ninguna certificación. — He calls himself a finance expert, though he has no certification whatsoever.
• Muchos influencers se autotitulan gurús del bienestar. — Many influencers style themselves wellness gurus.
• No te autotitules profesional si no tienes la formación necesaria. — Don't call yourself a professional if you don't have the necessary training.

Carries the same implicit skepticism as autonombrarse and autoproclamarse — using it for someone with a genuine, earned title can sound like you're casting doubt on their credentials.

Often confused with autoproclamarse.