The Cohors II Lucensium [equitata] (2nd cohort from the Conventus Lucensis [partly mounted]) was a Roman auxiliary unit.

Since there is no evidence for the suffix milliaria (1000 men), the unit was a cohors quingenaria equitata.

[2][3][4][5] The first evidence of the unit in the province of Moesia is based on a military diploma dated to the year 78.

John Spaul, Jörg Scheuerbrandt and Margaret M. Roxan assign the diploma to Cohors I Lucensium, while Agustín Jiménez de Furundarena to Cohors II Lucensium,[6] leading to uncertainty over the presence of the cohort in Pannonia.

[7] The first evidence of unit in the province of Thracia is based on a military diploma dated to 138.