燃油附加费(Bunker Adjustment Factor, BAF)，系海运运费计算中的一项附加费用，用以对于燃油油价波动所造成运送成本提高，而向托运人(或货主)所收取之一项海运费以外的附属费用。

Bunker adjustment factor, bunker surcharge or BAF refers to floating part of sea freight charges which represents additions due to oil prices. BAF charges used to be determined by Carrier Conferences to be applicable for a certain period on a certain trade route.