The Ontario Hockey Federation is the governing body of all sanctioned ice hockey in the province of Ontario in Canada, except for those portions governed by Hockey Northwestern Ontario and the Hockey Eastern Ontario. The security of our proposed concrete protocol is based on the difficulty of solving Elliptic Curve Discrete Logarithm Problem (ECDLP for short)  and One-way. Looking for the definition of OHF? Find out what is the full meaning of OHF on Abbreviations. Passionate way to explain one's pain/feeling or just another way to say OH FUCK ! When Carlos pushed Paul down the stairs Paul yelled, "Ohf!" by swisschick. OHF Stands For : One Human Family | Open Hearth Foundation | Open House Financial | Oregon Health Forum | Oxalosis and Hyperoxaluria Foundation. The Ontario Hockey Federation (OHF) is the largest member of Hockey Canada operating along side HEO and HNO as governing bodies for amateur hockey in Ontario.