Colonel Alexander Haughton Campbell Gardner, also known as Gordana Khan (Persian: گوردانہ خان; Punjabi: ਗੋਰਦਾਨਾ ਖ਼ਾਨ; 1785–1877), was a traveller, soldier, and mercenary active in Afghanistan and Punjab.

Although corroborating evidence is sparse, Scottish historian John Keay wrote biographies in 1977, 1979, and, most thoroughly, The Tartan Turban: In Search of Alexander Gardner, in 2017.

Habib Ullah was fighting his uncle for the throne of Kabul, and he recruited Gardner to his cause as the commander of 180 horsemen.

After an attack on a pilgrim caravan Gardner married one of the captives, a native woman, and went to live in a fort near Parwan where a son was born.

Later that year Gardner fled north with a few companions and near the River Oxus his party was attacked by fifty horsemen: they lost eight out of their thirteen men and the survivors were all wounded but able to escape.

The untented Kosmos my abode,I pass, a wilful stranger:My mistress still the open roadAnd the bright eyes of danger.

[3] He is supposed to have been difficult to understand due "variously to his lack of teeth, his liking for alcohol, his considerable age or the sing-song lilt of his rusty English; it could equally have been caused by the gash in his throat which was the most obvious of his many wounds and which obliged him to clamp a pair of forceps to his neck whenever he ate or drank.