Organic electronics increasingly impacts our everyday life with a variety of devices such as displays for TV or mobile appliances, smart cards and radio-frequency identification (RFID) tags.[1, 2] This blossoming domain could greatly profit from effective ways to fabricate conducting or semiconducting organic nanowires.[3] Specifically, the three-dimensional (3D) and individual integration of each nanowire is essential [4] for many new device concepts, but so far this was not possible. Here we show the demonstration of accurate and versatile 3D direct writing of conducting polymer nanowires based on guiding a monomer meniscus by pulling a micropipette during oxidative polymerization. This is an important step for organic electronic integration with high density and enhanced freedom in circuit design. Conducting polymers such as polypyrrole (PPy) and poly (3, 4-ethylenedioxythiophene): poly (styrene sulfonate)(PEDOT: PSS) are very interesting materials because they combine tunable electrical transport characteristics and excellent mechanical properties.[5] In particular, conducting polymer nanowires are quite important for a broad range of nanodevices such as field effect transistors,[3] bio-and chemical sensors,[6, 7] and non-volatile memories.[8] Such nanowires are fabricated by soft lithography,[9, 10] dip-pen lithography [11] and electrospinning.[12] However, these methods are still limited to in-plane patterning of low-aspect-ratio nanowires, whereas for advanced applications 3D patterning is essential. Direct ink writing and probe-based drawing are used for 3D wire patterning. The first method, based on the extrusion of concentrated ink through a nozzle, was applied for 3D microfabrication with metals, oxides, and polymers.[13–16] However, bringing the wire diameter below micrometer-level is not easy due to the size and concentration of the ink particles. Probe-based drawing can fabricate polymer nanowires.[17] However, high-density integration is limited by the large pre-deposited polymer droplet (a few tens to hundreds of micrometers). An alternate technique for 3D electrodeposition was recently developed: writing nanowires with a nanoscale electrolyte meniscus.[18, 19] This method was so far demonstrated for 3D metallic nanowires but not for conducting polymers. Here we show that this type of technique can in fact be used for conducting polymers offering high accuracy, excellent versatility and marked advantages with respect to alternate solutions. In essence, we obtained a stretched monomer meniscus by pulling a micropipette filled with a Py solution, exploiting oxidative polymerization in air. The wire radius so produced was accurately controlled down to∼ 50 nm by tuning the pulling speed. The technique was successfully tested with specific focus on essential features for advanced organic nanodevice integration. Specifically, we produced dense arrays of different types of freestanding nanocomponents: straight wires, complex-shape wires, branches and bridges. Such nanocomponents could be positioned at the planned sites with an accuracy of 250 nm. The technique individually controlled the electrical transport properties of each nanocomponent. The tests included the fabrication of real devices:“nanoarches” operating as individually addressable photo-switches.