Context : NGC 1380 is a lenticular galaxy located near the centre of the Fornax Cluster , northeast of NGC 1399 .
The globular cluster system of this galaxy was previously studied only from the ground .
Recent studies of similar early-type galaxies , specially lenticular ones , reveal the existence of star clusters that apparently break up the traditional open/globular cluster dichotomy .

Aims : With higher quality photometry from HST/WFPC2 we study the star clusters in NGC 1380 , measuring their magnitudes , colours , sizes and projected distances from the centre of the galaxy .

Methods : We used deep archival HST/WFPC2 in the B and V bands .
We built colour magnitude diagrams from which we selected a sample of cluster candidates .
We also analysed their colour distribution and measured their sizes .
Based on their location in the luminosity-size diagram we estimated probabilities of them being typical globular clusters as those found in the Galaxy .

Results : A total of about 570 cluster candidates were found down to V = 26.5 .
We measured sizes for approximately 200 of them .
The observed colour distribution has three apparent peaks .
Likewise for the size distribution .
We identified the smaller population as being mainly typical globular clusters , while the more extended objects have small probabilities of being such objects .
Different correlations between absolute magnitudes , sizes , colours and location were inferred for these cluster sub-populations .

Conclusions : Most extended clusters ( R _ { eff } > 4 pc ) share similar properties to the diffuse star clusters reported to inhabit luminous early-type galaxies in the Virgo galaxy cluster such as being of low surface brightness and fainter than M _ { V } \simeq - 8 .
We also report on a small group of ( R _ { eff } \simeq 10 pc ) , -8 < M _ { V } < -6 , red clusters located near the centre of NGC 1380 , which may be interpreted as faint fuzzies .