The 2018 Bangkok Challenger II was a professional tennis tournament played on hard courts. It was third edition of the tournament and part of the 2018 ATP Challenger Tour. It took place in Bangkok, Thailand between 8 and 13 January 2018. Singles main-draw entrants Seeds 1 Rankings are as of 1 January 2018. Other entrants The following players received wildcards into the singles main draw: Thanapet Chanta Congsup Congcar Pruchya Isaro Pol Wattanakul The following player received entry into the singles main draw using a protected ranking: Flavio Cipolla The following players received entry from the qualifying draw: Yuya Kibi Frederik Nielsen Sidharth Rawat Emil Ruusuvuori Champions Singles Marcel Granollers def. Enrique López Pérez 4–6, 6–2, 6–0. Doubles James Cerretani / Joe Salisbury def. Enrique López Pérez / Pedro Martínez 6–7(5–7), 6–3, [10–8]. References ATP Challenger Tour Tennis, ATP Challenger Tour, Bangkok Challenger II Tennis, ATP Challenger Tour, Bangkok Challenger II Tennis, ATP Challenger Tour, Bangkok Challenger II