Tango Explorer (タンゴエクスプローラー, Tango-ekusupurōrā) was a limited express service operated by Kitakinki Tango Railway and West Japan Railway Company (JR West) between Shin-Osaka and Miyazu and/or Toyooka stations.

The term also referred to the KTR001 series (currently used for Tango Relay services between Fukuchiyama and Toyooka) rolling stock itself.

Prior to 1999, the Tango Explorer operated from Kyoto Station, but with the introduction of the Tango Discovery service, Tango Explorer services begi at Shin-Osaka.

Tango Explorer services were generally run with three-car trains, though during peak holiday periods six-car trains (three paired sets) are used.

Shin-Osaka - Osaka - Amagasaki - Takarazuka - Sanda - (Shin-Sanda) - (Aino) - Sasayamaguchi - (Tanikawa) - Kaibara - (Kuroi) - Fukuchiyama - Ōe - Miyazu - Amanohashidate - Nodagawa - Tango-Ōmiya - Mineyama - Amino - Kumihama - Toyooka