H26, previously known as P07, is a national highway (H-highway) and former regional road (P-Highway) in the Kharkiv and Luhansk Oblasts of Donbas, Ukraine.

It runs west–east and connects Chuhuiv near Kharkiv through Starobilsk with Milove on the border with Russia.

Significant armed conflict has occurred along and near the P07 during the Russo-Ukrainian War.

In Starobilsk, on July 12, 2014, Russian-backed separatists partially damaged a bridge over the Aidar River.

The H26 also passes either through or near Malynivka, Korobochkyne [uk], Doslidne-Chkalovske, and Havrylivka [uk] in Chuhuiv Raion; Khudoyarove, Shevchenkove, Pervomaiske, Starovirivka, Hrushivka-Vasylivka-Osadkivka (Prokopivka station), Kupiansk, Petropavlivka, and Kyslivka in Kupiansk Raion; Berestova station, Novoselivske-Kuzemivka, Uchnivskyi station, Kryvoshyivka, Pidkuichansk, Kryvoshyivka station, Kalynivka station, Kolomyichykha, Zmiivka, Honcharivka station, Svatove, Petrivka, and Mistky, in Svativskyi; Dzhelmilne, Kalykivka, Levadne, Krynychky, Starobilsk, Vyshneve, Stepove, and Orikhove in Starobilsk Raion; Yevsuh, Pryvilne-Parneve, Bilovodsk, and Novospasivka in Bilovodskyi; Striltsivka, Novostriltsivka, Zarichne, Velykotska, Travneve, Chertkovo station (Rostovskaya), Ukraine-Russia border in Milove Raion.