I am an Indian citizen currently living in the Netherlands. I have a 1 year Dutch residence permit, can I enter the UK without a separate visa?
No, you cannot. From Timatic:
Nationals of India arriving from Ireland (Rep.) with a valid biometric C visa endorsed "BC BIVS" issued by Ireland (Rep.). The passport must include a valid Irish entry stamp. Passengers are permitted to stay in the United Kingdom until the expiry date of the Irish entry stamp.
Passengers with a "Permanent Residence Card of a Family Member of a Union Citizen" or a "Residence Card of a Family Member of a Union Citizen" issued by Netherlands to family members of a national of Switzerland or an EEA Member State . They must travel with or travel to join the national of Switzerland or EEA Member State. This does not apply to passengers with a different type of residence permit.
Passengers with an EEA Family Permit issued by the United Kingdom if the holder is traveling with, or to join the EEA or Swiss national.