Marina Baixa

{{Infobox settlement

| name = Marina Baixa

| native_name = {{nativename|ca-valencia|Marina Baixa}}
{{nativename|es|Marina Baja}}

| settlement_type = Comarca

| image_skyline =

| image_alt =

| image_caption =

| image_flag =

| flag_alt =

| image_shield =

| shield_alt =

| nickname =

| motto =

| image_map = Localització de la Marina Baixa respecte del País Valencià.svg

| map_alt =

| map_caption =

| coordinates =

| coordinates_footnotes =

| subdivision_type = Country

| subdivision_name = {{Flag|Spain}}

| subdivision_type1 = Autonomous community

| subdivision_name1 = {{Flag|Valencian Community}}

| subdivision_type2 = Province

| subdivision_name2 = 15px Alicante / Alacant

| seat_type = Capital

| seat = 15px Villajoyosa / La Vila Joiosa

| parts_type = Municipalities

| parts_style = coll

| parts = {{No bold|18 municipalities}}

| p1 = Benidorm, Villajoyosa, Altea, L'Alfàs del Pi, La Nucia, Callosa d'En Sarrià, Finestrat, Polop, Relleu, Orxeta, Tàrbena, Sella, Benimantell, Bolulla, Confrides, Beniardà, El Castell de Guadalest, Benifato

| leader_party =

| leader_title =

| leader_name =

| area_footnotes =

| area_total_km2 = 605.15

| elevation_footnotes =

| elevation_m =

| population_footnotes = Official estimate as at 1 January 2019: Instituto Nacional de Estadística, Madrid, 2019.

| population_total = 188623

| population_as_of = 2019

| population_density_km2 = auto

| population_demonym =

| population_note =

| blank_name_sec1 = Most populated municipality

| blank_info_sec1 = Benidorm

| timezone1 = CET

| utc_offset1 = +1

| timezone1_DST = CEST

| utc_offset1_DST = +2

| postal_code_type = Postal code

| postal_code =

| area_code_type = Dialing code

| area_code =

| website =

| footnotes =

}}

Marina Baixa ({{IPA|ca-valencia|maˈɾina ˈbajʃa|lang}}; {{langx|es|Marina Baja}} {{IPA|es|maˈɾina ˈβaxa|}}; lit. "Lower Marina") is a comarca in the Valencian Community, Spain. It is bordered by the comarques of Comtat on the northwest, Marina Alta on the northeast, Alacantí and Alcoià on the west and the Mediterranean Sea on the east.

The interior of this comarca is mountainous, and it is dominated by the Serra d'Aitana whose highest peak is 1,500 m. The local fauna is composed by eagles, hawks, crows, blackbirds, swallows, foxes, wildcats, wild boars and many smaller animals. Rosemaries, pines, medlars and carobtrees are commonplace flora. The terrain is calcareous, so the landscape shows impressive caves and natural archways and fountains.

Tourism is the main economic resource. Fruit trees (especially orange and lemon trees), olive and almond trees are cultivated. The population of this comarca strongly increased in the last twenty years.