Headgear
Headgear was any article of clothing worn on a person's head.

Bajoran hats 

Bajoran vedeks and kais, such as Winn Adami, wore special types of hats. ()

Headdress 

A headdress was a piece of material worn around the back of a head. It was normally seen being worn by Ferengi, and as part of the Ferengi uniform.

The recreated Ferengi sciences officer aboard Terrasphere 8 was wearing a headdress matching his uniform color. ()

A turban was a type of headdress worn by some Humans in the 20th century, as well as in the 2380s. (; )

Miscellaneous headgear 
Seltin Rakal and some other female inhabitants of Meridian wore pieces of fabric on their heads. ()

Other types of headgear 
 Bonnet
 Bycocket
 Crown
 Hat
 Headband
 Helmet
 
 Mask
 Medical diagnostic hat
 Veil
 Visor

External link 
 
Fashion