Here's Travel for Kids list of best family apartment rentals in Barcelona, all styles and price ranges, in neighborhoods near to fun things to do with kids.

Two favorite neighborhoods for apartment rentals are Eixample - West (Eixample Esquerra) and Eixample - East (Eixample Dreta). Both areas are residential neighborhoods, with supermarkets, bakeries, chocolate shops, fruit stands, cafes, restaurants, but also convenient to the metro (subway) and easy access to city sights.

An apartment rental in Barcelona has lots of advantages for families – a kitchen and refrigerator, so you don't need to eat all your meals in restaurants, room to spread out all your stuff (kids can have a room of their own), washer and dyer onsite, and cost savings for larger families (especially in high season). Rental policies can change, however, so be sure to check at the time you make your reservation to be sure your desired family amenities are still available.

• Barcelona Eixample – Three bedroom apartments, each bedroom has two twin beds or one double bed (sleep 6); fully-equipped kitchen with stove, oven, refrigerator, microwave, dishwasher, children's high chair; washing machine, drying rack; air conditioning; Hospital Clinic or Diagonal metro stop.
• Deco Apartments – Two bedroom apartment with double bed, two twin beds (sleeps 4), three bedroom apartment, one bedroom with double bed, second and third bedrooms with twin beds (sleeps 6), four bedroom apartment (sleeps 8); fully-equipped kitchen with stove, microwave, refrigerator, dishwasher; air conditioning; living and dining area; washer and dryer; Diagonal or Hospital Clinic metro stop; private parking close by.
• Acacia Suite – Rooftop swimming pool, one bedroom apartments with two twin beds or double bed and sofa bed (sleep 4 - 5), apartment with two twin beds and sofa bed (sleep 3), apartment with two twin beds (sleep 2); kitchenette with stovetop, microwave, and mini-fridge; living and dining area; air conditioning; car parking (fee); Hospital Clinic metro stop.
• Glocal Apartments – One bedroom apartment with queen bed and two twin beds (sleep 4), two bedroom apartment with queen bed and bunk beds in each bedroom (sleep 4), three bedroom apartment with two queen beds, bunk beds in bedrooms (sleep 6); fully equipped kitchen with stove, oven, microwave, refrigerator, dishwasher; living and dining area; washing machine; air conditioning; Diagonal metro stop.
• Habitat Apartments –Two bedroom apartments with double bed, two twin beds, sofa bed in living area (sleep 6); washer and dryer; fully equipped kitchen with dishwasher, stove, oven, microwave, refrigerator; living and dining area; air conditioning; Diagonal metro stop.
• Aparthotel Atenea Calabria – Apartments with double bed, twin beds, or sofa bed (sleep 2 - 5); crib available upon request; optional buffet breakfast included in the room rate; kitchenette with stove, microwave and mini-fridge; living and dining area; air conditioning; supermarket, bakery, and restaurants in the neighborhood; private car parking (fee); Urgell metro stop.
Eixample - East
• Paseo de Gracia Bas Apartments – One bedroom apartments with king bed, sofa bed in living area (sleep 4), one bedroom apartments with king bed plus twin bed in bedroom, sofa bed in living room (sleep 5); interconnected rooms are available; air conditioning; fully-equipped kitchen with stove, oven, refrigerator, dishwasher, microwave; stroller, children's high chair available; washer and dryer; some apartments have terrace and outdoor dining, Passeig de Gracia metro stop; public car parking.
• Quartprimera Apartments – Two bedroom apartment, one bedroom with double bed, second bedroom with twin bed (sleep 3), three bedroom apartment with two twin beds, one twin bed, double bed in bedrooms (sleep 5), six bedroom apartment (sleep 13); fully-equipped kitchen with refrigerator, stove, oven, microwave, dishwasher; washer and dryer or drying rack, children's high chair available; living and dining area; Diagonal metro stop.
• Apartments SixtyFour – One bedroom apartments with queen bed plus sofa bed (sleep 4), two bedroom apartments one bedroom with queen bed, second bedroom with two twin beds, sofa bed in living area (sleep 4 - 6); air conditioning; washing machine (and dryer in some apartments); crib available upon request; fully-equipped kitchen with refrigerator, stove, oven, microwave, dishwasher; living and dining area; public car parking; Passeig de Gracia metro stop.
• Claris Apartments – One bedroom apartment, double bed in bedroom, sofa bed in living area (sleep 4), two bedroom apartments with double bed in one bedroom, two twin beds in second bedroom, sofa bed (sleep 5 - 6); living and dining area; fully-equipped kitchen with stove, oven, refrigerator, microwave; some apartments have a washing machine and drying rack; air conditioning ; public car parking; Diagonal metro stop.
• Barcelona Apartment Val – One bedroom apartment with double bed in bedroom, twin sofa bed (sleep 3); two bedroom apartment with double bed in one bedroom, single bed in second bedroom, single sofa bed (sleep 4), three bedroom apartment (sleep 5); living and dining area; fully-equipped kitchen with stove, oven, refrigerator, dishwasher, microwave; air conditioning; public car parking available; Passeig de Gracia metro stop.
Las Ramblas Area
• Citadines Ramblas Barcelona – One bedroom apartment with bedroom with double or two single beds plus sofa bed (sleeps 4 or 5); fully equipped kitchen with stove, refrigerator, dishwasher, microwave oven; living room and dining area; on-site washer and dryer; air conditioning; babysitting services; fee car parking; apartments are located on Las Ramblas, one block from La Boqueria market, with restaurants and cafes in the neighborhood.
• Apartaments St. Jordi Comtal – Two bedroom apartments with double bed and two twin beds (sleep 4), three bedroom apartment with double bed, two twin beds, twin bed in third bedroom (sleep 5); kitchen with refrigerator, stovetop, oven, microwave; living and dining area; air conditioning; washing machine, drying rack; close to metro and Pl. Catalunya.
• Napols Aparthotel Barcelona – Two bedroom apartments with single beds (sleep 3 - 4), one bedroom apartment with double bed and extra bed (sleep 3), fully-equipped kitchen with stove, oven, refrigerator, microwave; living room and dining area; air conditioning; bakery and restaurants in the neighborhood, supermarket across the street; car parking.
Sagrada Familia
• Suites Marina – Two bedroom apartment double bed and two twin beds (sleep 4), two bedroom apartment with three twin beds (sleep 3), two bedroom apartment with two twin beds, (sleep 2); fully-equipped kitchen with refrigerator, stovetop, oven, microwave, dishwasher; living room and dining area; air conditioning; crib available upon request; market, restaurants, and bakery in the neighborhood; car parking (fee); Sagrada Familia metro stop; playground is close by.
• MH Apartments Sagrada Familia – Apartments (sleep up to 6), fully equipped kitchen with stove, oven, microwave oven, and refrigerator; living room and dining area; wash-dryer in apartment; crib (fee) available upon request; hotel is close to metro, one block from a playground; supermarket across the street, cafes, restaurants in the neighborhood; Sagrada Familia metro stop.
• Apartments Hispanos 7 Suiza – Two bedroom apartments, double bed in one bedroom, two twin beds in second bedroom, sofa bed in the living room (sleep 4 - 6); fully-equipped kitchen with refrigerator, stove, oven, dishwasher, microwave, children's high chair; washer and dryer; on-site restaurant; air conditioning; daily cleaning; bakery and fruit stand in the neighborhood; fee car parking; Sagrada Familia metro stop; apartments are one block from a playground.
Gracia

This neighborhood is the continuation of the Passeig de Gracia north, a residential area with restaurants, bakeries, fruit stands, and a laundromat at Placa del Sol.

• Aparthotel Mariano Cubi – Apartments with two twin beds and double bed or four twin beds (sleep 4), apartment with two twin beds (sleep 2); kitchenette with refrigerator, microwave, stovetop; buffet breakfast available; air conditioning; car parking (fee); Garcia, Fontana metro stop. .
• Aparthotel Silver – Apartments with one double bed or two twin beds (sleep 2), extra bed available (sleep 3), interconnecting rooms are available; kitchenette with stovetop, microwave, and refrigerator; air conditioning; fruit stand, bakery, supermarket, and restaurants in the neighborhood; Fontana metro stop; private car parking (fee); patio garden.
• Aparthotel Augusta – One bedroom, with three twin beds, plus sofa bed in living area (sleep 3), triple room with two twin beds, plus sofa bed (sleep 3), double room (sleep 2); kitchenettes with stove, oven, refrigerator; living and dining area; grocery delivery; air conditioning; private car parking (fee); bakery, fruit stand and restaurants in the neighborhood; Fontana metro stop.