Context : The Cygnus complex is one of the most powerful star forming regions at a close distance from the Sun ( \sim 1.4 kpc ) .
Its richest OB association Cygnus OB2 is known to harbor many tens of O-type stars and hundreds of B-type stars , providing a large homogeneous population of OB stars that can be analyzed .
Many studies of its massive population have been developed in the last decades , although the total number of OB stars is still incomplete .

Aims : Our aim is to increase the sample of O and B members of Cygnus OB2 and its surroundings by spectroscopically classifying 61 candidates as possible OB-type members of Cygnus OB2 , using new intermediate resolution spectroscopy .

Methods : We have obtained intermediate resolution ( R \sim 5000 ) spectra for all of the OB-type candidates between 2013 and 2017 .
We thus performed a spectral classification of the sample using HeI-II and metal lines rates , as well as the Marxist Ghost Buster ( MGB ) software for O-type stars and the IACOB standards catalog for B-type stars .

Results : From the whole sample of 61 candidates , we have classified 42 stars as new massive OB-type stars , earlier than B3 , in Cygnus OB2 and surroundings , including 11 O-type stars .
The other candidates are discarded as they display later spectral types inconsistent with membership in the association .
We have also obtained visual extinctions for all the new confirmed massive OB members , placing them in a Hertzsprung-Russell Diagram using calibrations for T _ { eff } and luminosity .
Finally , we have studied the age and extinction distribution of our sample within the region .

Conclusions : We have obtained new blue intermediate-resolution spectra suitable for spectral classification of 61 OB candidates in Cygnus OB2 and surroundings .
The confirmation of 42 new OB massive stars ( earlier than B3 ) in the region allows us to increase the young massive population known in the field .
We have also confirmed the correlation between age and Galactic longitude previously found in the region .
We conclude that many O and early B stars at B > 16 mag are still undiscovered in Cygnus .