Feminine Personal name
Confirmed occurences in the Roman Empire:

• Aemilia Tertulla Marciana Cornelia Rufina Africaniana (Fem, senator), ref: Raepsaet FOS 38 | PIR ID952
• Annia Tertulla (Fem, senator), ref: AE 1936, 121 | PIR ID1352
• Appia Annia Regilla Atilia Caucidia Tertulla (Fem, senator), ref: PIR A 0720 | PIR ID1738
• Arrecina Tertulla (Fem, senator), ref: PIR A 1074 | PIR ID1922
• Atilia Caucidia Tertulla (Fem, senator), ref: Raepsaet FOS 118 | PIR ID2194
• Caecilia Tertulla (Fem), ref: PIR C 0093 | PIR ID3079
• Caucidia Tertulla (Fem, senator), ref: Raepsaet FOS 201 | PIR ID3833
• Caucidia Tertulla (Fem, senator), ref: Raepsaet FOS 202 | PIR ID3834
• Decia Tertulla (Fem, senator), ref: PIR D 0030 | PIR ID5230
• Flavia Tertulla (Fem), ref: PIR F 0442 | PIR ID5939
• Flavia Tertulla (Fem), ref: Dig. 23, 2, 57a | PIR ID5940
• Gavia Tertulla (Fem), ref: PIR G 0121 | PIR ID6584
• Hydria Tertulla (Fem, senator), ref: PIR H 0236 | PIR ID7022
• Iulia Tertulla (Fem, senator), ref: PIR I 0706 | PIR ID7255
• Iunia Tertia Tertulla (Fem, senator), ref: PIR I 0865 | PIR ID7898
• Lappia Tertulla (Fem, senator), ref: PIR L 0086 | PIR ID8196
• Tertulla (Fem), ref: PIR T1 0085 | PIR ID13015
• Tertulla (Fem), ref: PIR T1 0086 | PIR ID13016
• Tertulla (Fem), ref: PIR T1 0087 | PIR ID13017
• Tertulla (Fem), ref: PIR T1 0088 | PIR ID13018
• Tertulla (Fem), ref: Plin. nat. 7, 163 | PIR ID13019
• Trebicia Tertulla (Fem), ref: PIR T1 0240 | PIR ID13285
• Antonia Tertulla Valeria Asinia Sabiniana (Fem), ref: X 6704 | PIR ID14733