Johnny Mak Ip-sing (Chinese: 麥業成; born 1960) is a pro-ROC and pro-democracy politician in Hong Kong.

Growing up in a pro-ROC background, Mak was a graduate from the Tamkang University in Taiwan, studying Japanese language.

[3] On the issue of the Occupy Central movement campaigned by the pan-democrats with the aims at pressing the Beijing government to implement genuine universal suffrage, Mak was accused by pro-Beijing newspaper Tai Kung Pao of working for the Military Intelligence Bureau of the ROC National Security Bureau.

[4] In addition to being Chairman of the Democratic Alliance and Vice-chairman of the Yuen Long District Council, Mak serves other positions.

Mak currently serves as primary organizer of yearly Double Tenth celebrations in Hong Kong at Hung Lau.