This is a list of people who served as Lord Lieutenant of Sussex. From 1677 until 1974, all Lord Lieutenants were also Custos Rotulorum of Sussex.
Lord Lieutenants of Sussex to 1974
At this point the Lieutenancy was split into two, per the Local Government Act 1972, and replaced by the Lord Lieutenant of East Sussex and the Lord Lieutenant of West Sussex.
References
Lord Lieutenant of Sussex Wikipedia(Text) CC BY-SA