Buku Harian Nayla is an Indonesian Christiany television drama which aired on RCTI. The scenario was written by Serena Luna. The story is about a girl who was diagnosed with Ataxia when she was young. This serial gained a national rating of 30.8% throughout Indonesian viewers. Due to overwhelming fans' responses, RCTI did re-runs at 4.30 PM every Monday and Friday, but, unlike the original run, the re-run cut its playtime into 30 minutes including commercials..