The AACTA Award for Best Television Drama Series is a television award handed out by the Australian Academy of Cinema and Television Arts (AACTA). It was previously awarded by the Australian Film Institute (AFI), from 1991 to 2010, and will continue to be presented by the Academy. It is awarded to a dramatic television series of no fewer than five episodes. It can be a series of self-contained stories which can be screened in any order or a number of interweaving and overlapping plots continuing from one episode to the next.^[1]

Between 1991 and 2001, only individual episodes were awarded. The award has changed its name several times, and between 1993 and 2001, it became two separate categories; from 1991 to 1992, the award was called Best Episode in a Television Drama, Series or Serial; from 1993 to 2001 the award was split into Best Episode in a Television Drama Series and Best Episode in a Television Drama Serial and; from 1998 to 2001 Best Episode in a Drama Serial was changed to Best Episode in a Television Drama Series (Long). In 2002 the awards was combined to make Best Drama Series.^[2]

The award is usually presented to the producer(s) of a series, but between 1991 and 2001, the award went to the producer of a specific episode.^[2] Over the years, ABC have won sixteen of twenty-nine awards.^[A] Home and Away have won four awards, more than any other television programme. If the Best Episode categories aren't taken into account, then Home and Away's wins are discounted and Love My Way would have the record of three.

Potential nominees must submit two episodes from a drama series, which will be judged as a single entry, and a fee of A$1,125. The television program must be produced and broadcast in Australia for free-to-air or subscription television channels, but excludes broadcasts on community television.^[1][3]

• AACTA Award for Best Television Comedy Series
• AACTA Awards