The latency-associated nuclear antigen (LANA-1) or latent nuclear antigen (LNA, LNA-1), is a Kaposi's sarcoma-associated herpesvirus (KSHV) latent protein initially found by Moore and colleagues as a speckled nuclear antigen present in primary effusion lymphoma cells that reacts with antibodies from patients with KS. It is the most immunodominant KSHV protein identified by Western-blotting as 222–234 kDa double bands migrate slower than the predicted molecular weight. LANA has been suspected of playing a crucial role in modulating viral and cellular gene expression. It is commonly used as an antigen in blood tests to detect antibodies in persons that have been exposed to KSHV.

Lana may refer to:

• Lana (given name)
• Lana (wrestling), professional wrestling manager
• LANA, Latency-associated nuclear antigen
• Lana (chimpanzee), a language research chimpanzee
• "Lana", song by The Beach Boys from their 1963 album Surfin' U.S.A.
• Wild Energy. Lana, a 2006 Ukrainian fantasy novel